i had my CD on the range this weekend, and it was having problems coming fully into battery. The slide would stop about 1/4 inch from all the way forward. I did not lube it before fireing (i forgot the CLP), but the other one was treated the same with out any problems. Is it just an issue of the shorter bbl being more sensitive to needing lube (if so, where should I put the oil at?), or what else should i try?