I have no experience with LaserMax products, but I have Crimson Trace grips on three handguns, my Browning High Power and my S&W 637 and 686+. I bought the 637 about seven years ago and had the dealer install the LG 305 grips on it (didn't take me long to realize I could have done it myself). This is an excellent choice for a J-frame snubby, as it covers the backstrap (which gives some protection from recoil) and allows a full-fingered grip. The LG 107 and 407 sets leave your pinky out in space. The 107 set is made of hard plastic and does not cover the backstrap, so has to be punishing to shoot. The 407 not only covers the back strap, it has a shock absorber built into the top of the back strap, which has to be welcome when shooting more than twenty rounds -- even of range loads! I shoot weekly at a local indoor range, always at 5-10 yards, and mostly with laser sights. I am old, and if I am not wearing my glasses I cannot even SEE the iron sights on my handguns, much less use them. I have no problem seeing that red dot, and I just love seeing a black hole appear where the red dot used to be.
I am so sold on Crimson Trace laser grips that I would not buy a handgun that they did not offer grips for. I consider such weapons to be fatally flawed.
Cordially, Jack