I hear it was 250-300% mf was a good range of mf, but i figure more mf would increase my odds even more. what are your thoughts on mf?

This subject has never been discussed in whole d2jsp life.
Thx to you now if someone will try to google it will find some answer!

it's just a copy-paste or you're also able to read this?
i mean, total MF, effective MF, which range should be used in order to find xxx and so on?

Well okay. My take on it is: If you're looking for something specific, you can dicktate where to mf for it. If general mf'ing: Make the build you like the best, have as much mf% as you can without compromising kill speed, and just have fun with the game. Play it as it is meant to be played. Sell shit you find on jsp for fg, and trade for shit you need.

hdin 250 mf ladder
light sorc 200 mf nl

There is no best range of MF to find specific items. If you're after unique items, then for any one drop, the higher the MF, the higher the chance of it being unique.

Click on the guide below for more details as to how MF works.

Get a balance so that u got good mf but kill fast enough and don't die. That's it. Keep ur invent as free as possible so u can stack a lot of items that ull identify all at once and that's it. The more you kill the more chances of drop. So it's not just about mf