I bought a Wolff spring kit and SS guide rod for the same reason, heavy 200 grain XTPs. With the heavier springs, 22#, IIRC, the lighter loads did short stroke the slide, but was reliable with the 200 XTPs. I would skip the barrel upgrade, and shoot and clean with the HC, or just go with a good jacketed HP, like the 200 XTP. Without reloading, you are probably not going to save much with HC.