The 110's do NOT need a 7.5 or even 7tw to stabalize. I've shot them into -2400 DA out of an 8tw with zero stability issues.
The problem with the 110's is the random fliers being found. Especially in the newer lot of bullets. The originals that came out were amazing. Majority of shooters are finding horizontal plane fliers consistently. Sorry, I know this wasn't about the OP
I shoot them in my 7.5 twist and they're great. I finished third in my last local PRS style match with them but I had horizontal flyers until I started jumping them .075 to .080!