Ok, here it is. I hope I am asking this in the right area, but I have possibly a bad newbie question. My EDC weapon is a Glock 30sf, and currently I carry Winchester PDX1 230gr bullets. I have been reading up on the importance of velocity. I have been considering carrying Corbon JHP 165gr +P because the velocity is much higher and thus possibly being more effective. My question is by going WAY down on weight do I give up some of the stopping advantages of a heaver bullet? Your pros/cons of either set up or any other setup would be much appreciated. Thanks in advance.