After many prints with green and yellow i can say that the quality is not so sharp and surface is rough sometimes. People on forum will disagree specially those who sell b9 products. I have same problem i thought it was because i had preordered the first batch of green and yellow and maybe the formula has been fixed but after ordering again same problems. I had about 630 hrs of print time when i first started using them and now i am at 912 hours and evrrythig is dialed in .. perfect test prints ... new resin ..resin is well mixed before each print and i have a system for storing my red aluminum vats in a airtight lightproof box after each use. I print cherry when i will do a mold of 3d print and i use yellow or green vats if im casting . So im always changing vats...
green and yellow have a roughness to them every time or so depends on model shape or just luck.. they can always blame it on projector lamp bieng diff from model to model but in the end if you find the right settings for your printer they work fine.
My advice is try not going over 1.4 msn or less than 1 and store your vat inside airtight box lightproof also.
cherry will always print well and casting will come out nice if you know what your doing.