Pancho Peacemaker

Just finished the Texas Wild Bunch state match. I took a bunch of old Colt mags with me. Had about a dozen "last round" FTF (almost always old mag spring probem.) These mags were all over 20 years old and had 1000's of rounds through them. My mistake. Need new mags. I was looking at Wilson Combat Service mags (no base bumper). I shoot Traditional and these look like they will pass muster. http://www.brownells.com/.aspx/pid=45494/avs%7CMake_3=1911/Product/1911-45-ACP-SERVICE-MAGAZINE Does anyone else use these for WB traditional? How do you like them?