I,too, have a M329PD, which I like a great deal.

Had mine Magnaported, to subdue the muzzle jump. It worked quite well. Now double action is quite useful.

I installed the M500 grips that you can buy from the "store" on the S&W site. They help quite a bit, covering the backstrap with a sorbothane insert.

The M329PD (4"), not the short barreled M329 Nightguard, is the best woods carry handgun for here in Alaska, IMHO.