Okay, so, I am an avid T3 Lockdown player. However I hate the fact that I have to play with the Vog Cub set equipped to get some ASI. I craft Flourishes on my alternate account in hope I get an ASI VH UV (Believe me. I once wasted 1m on Punch. Don't say I didn't try) So I was wondering, what are the chances of getting a VH UV via crafting? (I once crafted a Slime VH Flourish..)
See the wiki page "Unique Variant", for some data, however incomplete. It seems that getting a UV is about 1/10. Getting ASI on a weapon is about 1/8. Getting +4 seems to be about 1/20. Assuming these events are independent, you should get ASI+4 about 1 in 1,600 times that you craft a Flourish.