The question is what would you prefer not me
But i am rocking diamond it has higher min dmg but lower max damage compared to shadow bow
Diamond is more consistent but with a really good inventory of max ar life gcs and scs it doesnt matter

What i would recommend is to lose the cta and put wizardspike(7fhr socket for 86fhr) + spirit (eth for 10less str) on swap to reach a 152fcr bp

What main skill? If strafe then it’s a easy GMB choice

Assuming a focus on multishot, shadow bow.

GM can't hit the 7-frame breakpoint without a) dropping Razortail for Nosferatu and using Highlords / Cats Eye. Shadow bow, only needing 65IAS, means you can keep Razortail and also (for higher player counts) grab Atmas amulet for the amp dmg proc.

lilith0 posted this setup years ago and imo it’s good one, no Enigma tho

all are good options imo, but depends on the rest of your setup. To me, reaching 7fpa is crucial on a multishot bowa.

I like running hustle on switch to proc BoS and then faith gmb only needs 45-50 ias to reach 7fpa (on SP).

On b.net, I'd probably run harmony on switch instead (I prefer walkazons), as it's much easier to get proper jewels / helm to hit breakpoints. With shadow bow you need to have lvl 14+ fana to reach 7fpa with 65 ias (gloves + helm). Diamond bow is same speed.

Mat bow is the fastest, but also lowest dmg. It's a decent option if you also want to use the bow for a quick frostmaiden with the +3 skills.

I'd personally go for gmb or shadow/diamond.

gmb

Gmb.
Hustle on offhand

You will be at 7 frame with atma and razortail