the follow in the mag getting stuck at the bottom with more than 21 rounds in a 140mm tube is a common problem.. changing to a dawson basepad will not solve that problem, i've tried it. after the 21st round the follow goes below the rib of the magazine and can fall sidways. i use grams guts and 11mm basepad on my 140mm mags. as for the big stick i have found that the dawson follows are worthless. you can only get 25-26 rounds no matter wut spring, i have tried that to. i have found that using grams guts and a 4mm basepad on the big stick, i get 28+1 and never fails. also shoot supercomp
shane c