rat grips for vector

Just got my Kriss CRB in Cali.  Wanna sleep with it, but that would make me crazy, right?
I love it and it makes me sleep so much better.
Anyone know if those hot gun melt RAT grips are worth the effort to make for the Vector?
Its like having custom ski boots I guess.
Any suggestions on the topic?  Great mods in here for the Kriss obsessed.
SC.

Serious, I used them on my SIG pistol to build up the back of the grip and it worked fine.  Temp is real critical when you form it and I had to use an automotive type body work heat gun to bring it up to temp and you have to work fast before it cools. If you take the time to lay everything out before you start, should be ok. Just my 2 cents.