Much of the percieved 'cheapness' of the Noryl GTX handles is due to the sound they make when opening and closing the blade. Griptilians are usually blade heavy too, not well balanced. They tend to feel light and flimsy.
There have been several of us who have modified them by adding weight to the pockets inside the scales. [If you take the scales off, they look like a waffle inside]
I pressed some lead into the rear and top pockets and sealed it in with epoxy.I made sure everything was flush so that there would be no blade interference. When reassembled, you can't even see it.
It is now perfectly balanced. The Mattel sounding 'clack' is now gone. The added weight, [only about 1.5oz] really changed it. Overall, the knife now feels much higher quality in hand.
Othere users have added window sealing rubber to their scales.
The main object is to fill in the scale pockets so as to silence some of the sound resonance.
Regardless of what method we used, we all have been very happy with the personality change to the griptilian. When I hand my modified Griptilian to someone, and an unmodified one, they immediatley like the modded one, even if they don't know why they do!
Of course doing any of this all this will void your warranty, so, DON"T DO IT!
Noryl GTX is super tough reinforced plastic. You can't really hurt it. It is a great handle in the Grip. It just sounds cheap. I think the BM Axis system is the best lock on the market which is why I bought a Grip in the first place.