Gents, first thanks for all the great posts here. You've all made some great suggestions for modifications (particularly StrangerDanger, Unobtanium, BigHat, Hookster, to name a few). Just finished the tube install (beautiful, thanks Kip) and C-stock install (thanks HK2000!) as recommended. For those that haven't done more than one of these, the ease of removal varies greatly between one gun and another, so if you get a hard one, its not you! The first tube was very easy...took about 2 minutes. Second one was at least 10 times harder to remove, and after removing it I found out why...at least 10 times more Loctite was put on the threads by the Benelli installer. By the way, out of fear of damaging something, I just wrapped the receiver in a towel and held in my legs, while twisting the tube off with leather gloves. Not the easiest method, but the safest. Anyhow, thanks y'all!