i have 2 cz 85's
One is a transitional from 1991 but looks like a B model except for hammer and sight.
The other is brand new Combat 2008, just got it and plan to use both for IPSC. Problem i have is my grip, as sometimes my 1st knuckle of middle finger of left hand (

) will hit the release.
Working on changing grip but thought if it was on other side it shouldn't be a problem. Flip side of equation is that during a change I use that same knuckle to do a mag change. Sounds wierd but actually works fast.
Dont know what to do but if its is possible I might do a change.
Just as an afterthought, this might not be allowed under Production rules if I do change. Have to check into it.
Cheers
Terry