+ 1 on the "they suck"...
I got a set directly from the maker; black grooved plastic for my P-38. Warped, air holes, no grommets, no screw, poor fit.
The VoPo P-38 came with OEM brown Bakelite grips; I looked for the OEM black Bakelite but at the time, they were going for ~$200 pr...
I even tried Numrich's walnut grips (original grooved style) but the shape is just slightly different from original; just enough that they look grotesque...Too bad, as the fit, workmanship, and attention to detail are outstanding...