Ray- I tried the PGs right after they came out and could not see much difference in them and the regular version. Back in the early '90s I was using a lot of Jack Carter's Bear Claws, those were quite a good bullet. The North Forks have worked very much like them on the few animals I've used them on, big mushroom with 90%+ retained weight. If I were to switch off of the TTSXs I'd likely go straight to the NF because they are also super accurate and always hold together.
