PaulW..I will check the dimensions on my sticks..
I have one STI tuned by Beven..all his parts..works in both my guns no problems..I have a SV mag with Grams follower and stock basepad, and another STI stick with all Beven parts, but not tuned to max capacity..all work well in my guns..I load to 1.235 and use a round nose bullet..I know for one of my guns..I needed to shorted the feedlips to get an earlier release, but after that..no troubles with that gun..