yeah i seen some and the spring in the trigger flip is just that.
if you try and you tube use "buckmark trigger spring flip"
i get it on tuesday and my buddy is picking up a springfield 1911 by friday. its gonna be a good weekend with 2 1911's and two .22 pistols and may make a full day with the ak to boot.
awesome quick video too.
and who up there said it was hard??