I have an unpainted pic of the PlasTech panther, which is (like most of that set) a bit sloppy and beefy. Note the massive injection ports on the shoulders; the sides of the legs are often undercast as well.
Fortunately the plastic is stiff, soft, and easily fixed with a little bit of sawing and panel scribing. Cleaning one takes me about 8-10 minutes with a box-cutter and a small dab of Green Stuff or Milliput.
I use the larger sculpt as the -9R/-10Ks in my Panther Company, since I have a goodly number of them. The slighter Beginner Set/IWM sculpts are -8Zs and -12As. I'll dig some out after we finish moving.