Does anyone know what are the breakpoints for a double throw barb with lacerator in one hand and warshrike in the other? I'm finding conflicting information online.

the information is complicated and clear, i agree on that.
I usually follow the classical IAS d2 calculator https://d2.lc/IAS/ found there.

The most reliable way to use it, is to select your class, and your weapon, and not any other mods, and then see for that wep what it gives as a breakpoint.
The calculator is very outdated. However, I think that is the one most people use as a reliable measure.
I dont fill in any attacks, attackspeed, skills or whatsoever, just the weapons type and the class.


So i've put in lacerator and warshrike, but first, i've looked up which type of weapons they are on diablo wiki.

Results



And then u click show IAS table and this pops open ( remember if u do new one, you need to close the table window or it gets bugged)



Concluding from this you can see your breakpoints per weapon type, i know its all over the place. Like in the attacks per second makes no sense
But it all has to do with 1 second is 25 frames,so in 12.5 ticks (half second) you do 2 attacks.(even though it might now look like it ... tthis is just how its calculated)
So with 0 attack speed on ure items, you do 2 attacks per second. ON your left you see your IAS breakpoints.
For each thing you go lower, you can go to a new breakpoint. So from 23 attackspeed 2.5 attack per second to 35 attackspeed does nothing, but if u got 39 attackspeed, you got a new breakpoint and go to 2.63 attack per second instead of 2.5 .
Now more is not always better for the general build,. but at least here you can get an idea. For example the breakpoint from 63 IAS to 105 is huge compared to the other ones. So it might be nice to go for 63 and put the rest in other modifiers like crushing blow for example.
Anyway good luck

One last comment, I am not sure if your attackspeed scaled over the IAS that is in your weapon or not. But still this gives some insigt

This post was edited by dakkonjones on May 4 2022 09:09pm

An even safer bet would be to not use both weapons but just do it 1 by 1.
Look at these results for single weapon only



and



and now compare them to the original post i made.
The weapons have different breakpoints. as you can see

I would stick with as simple as possible entry into that calculator.
So 1 weapon at a time.

At least know you know the source of all the confusion ^^

In modern guides for d2, IAS are usually not given because it is different for each class and also for the weapon type.
But this is the best way to calculate the boost in IAS just like you do with FHR or FCR which are simpler.

This post was edited by dakkonjones on May 4 2022 09:17pm

If you do the winged knife (warshkire)
And fill in 30 ias in weapon and select throw skill. But also add in 35 attackspeed from gear.
It tells you this


It also tells you that anything over 35 IAS is useless.
Do some experimenting with it
You can directly see the results down there by each point you increase or decrease
in here it showes you 9 frames per attack, and 2.77 attacks per second, and when you put 80 attackspeed on your gear isntead of 35. Your attacks per second will still be 2.77.
This is probably because it is a very fast weapon.
For a slower weapon it will be different again...

For the lacerator(30%) vs a regular winged axe (0%ias lacerator)
With 0 attackspeed in gear, the base differenct is lacerator is 2.27 attacks per second versus regular winged axe 1.78 attack per second.
Over that your attackspeed gets scaled .60 attackspeed in gear, gives us 2.77 attacks per second in lacerator versus 2.5 attack per second in winged axe(0%ias lacerator base).

As you can see the numbers of the table are correct with the base of the item




and now the values for the lacerator



I know this is a big shitty unorganized post.
and TLDR. Because I guess I was confused myself at this site.
However after half an hour, I guess you will get it .
Good luck

oh my god.

I read my own post. And so the last table, on the lacerator gives exactly the same values as the non lacerator.
So that DOES NOT WORK.
Use the table ONLY for base value if no ias is on weapon.
And use the regular site if you want to do it for your legendary weapons and stuff..


TLDR Conclusion.
Tutorial:
1. Select your class: Barbarian
2. Select your weapon type, (lookup Lacerator on diablo wiki, gives Winged Axe)
3. Fill in your attackspeed that is ON your weapon. (30% in this case for Lacerator)
4. Fill in how much attackspeed you have (watch out that you dont do it in the wrong column, i did in this example 60)
5. Select skill used.
6. Read your attacks per second on bottom page .
7. Adjust your IAS that you filled in in point 4. Up or down and see your attacks per second adjusting at the bottom of the page.
Thats it .
8. By doing this you can see where your breakpoint are approximatly .
9. good luck

There is a lot of mistakes in the answere in this topic... The skill standard attack is first of all not working the same as double throw.

What is new is that offhand wep wsm no longer matters.

Ias on offhand does not count either. And never has.

So main hand wep wsm is your wsm, period.

You can use this formula:

Double throw / frenzy:
Vincrease doublethrow/frenzy =floor(70-wsm+SIAS+(120*ias/(120+ias));1)
This has a cap of 150.

Fpa:
Double throw:
=ceiling(256*12/floor(256*Vincr/100;1);1)/2

This is how u find ias needed to reach VINC breakpoint:
Frenzy/double throw:
=ceiling(120*(Vinc-70-SIAS+WSM)/(120-(Vinc-70-SIAS+WSM));1)

This post was edited by gel87 on May 5 2022 07:33am

So you're telling me that I'll attack faster if I have warshrike in main hand and lacerator in offhand?

Yes