I went out and shot my CORE/RMR again this morning, I still can't believe how much muzzle flip this combo has compared to shooting my 2.0C. I added the TLR-1 light and things were better. I also tried the factory barrel and the only thing different was my group sizes. I may yet give up on this adventure and sell the pistol/sight, if I do I'll let you know on the Apex barrel. It really sucks to have spent so much money with Apex to get this thing shooting like the 2.0C does from the factory.
