The lighter grain bullet should actually be less an overpenetration worry than a heavier one. As for recoil, you may find that 135 gr. a bit snappier than the 180 you remember. For any given caliber, heavier bullets tend to produce a bit less felt recoil than lighter bullets. Many compare the 180 gr. .40 S&W to the .45 ACP recoil-wise (feels more like a gentle push than a harsh snap) whereas 165 gr. and smaller feel more like a .357 SIG (or .357 Mag, for that matter), somewhat more punishing.