I am going shopping today to replace the XD that I sold a while back to a friend and have narrowed my choices down to a 908S or M&P 9 compact. While exploring the Midway website looking for prices and options for the 908s, like metal sights, mag catch and guide rod, plus magazine prices, I stumbled on some fancy wood grips for the 908 and 3913. Are these OK? I thought the late metal frame S&W autos used the grips as a seat for the mainspring? Or am I all wet? I haven't handled a S&W auto since the 70's when my OJT trainer owned a model 39. I love wood grips, but not if the strength is needed for function.