I own several Ruger pistols but have been looking at P-345s. I am a fan of the 45 ACP round for home defense. The only thing that gives me pause is the rails. Most Polymer frame pistols have metal rail inserts where the P-345 doesnt. Also the Ruger site says they do make P-345 with an aluminum alloy frame. Has anyone experienced any problems with the polymer frame with high round counts?