I've had Nill grips for other firearms, but not a GP. I will say that they are very well made - to the point that I immediately sold them in fear of damaging them.
They do look like sweet grips. I personally dont have a gp100 but my dad does he loves it. He has the 6" gp100 i guess he got it for some childhood john wayne dirty harry deal he had. He wants peal grips for it anyone know where we can find them?
I've found that I'm really not too fond of grips that sort my fingers out for me. And honestly, after trying a few aftermarket grips, the standard GP100 grips- those with the wood panels- work just fine for me.
It depends on what you're after. Those look to be a bit wide in the base, for me. I really like the Hogue hard nylon grips for carry- $25, the feel of wood and I don't mind getting them dinged.