1911 Grip Safety: Biggest "Memory" Bump?

[beltfed]

Wow, two pages of drivel with very little information for the OP!!! Some of you suck!!

What brand/model of 1911 grip safety has the biggest "memory" bump?

I just can't seem to make the grip safety on my Sig 1911 GSR work without a "white-knuckled" grip. I have a "high" hold on the gun with my right thumb sitting on the safety. (This hold and my hand just don't contact the existing grip safety with enough pressure to consistently disengage it.).

And before you say "just disable it": I want to use if for IDPA CDP and IPSC Single Stack Standard (in Alberta we have an unofficial SSS class) competition. To comply with IDPA rules the grip safety must function.

I have the same issues as you; I ride the 1911 high and sometimes have issues with the grip safety, and shoot mine in IDPA as well.
I've looked at options and so far the only two I can come up with is:
1) As suggested, sensitize the grip safety so that the slightest pressure on it will de-activate the firing pin block. Likely the easiest and cheapest method as well.
2) Source a Novak equipped or send your 1911 to Novak's for his 'The Answer' one-piece back-strap modification - this is a one piece back-strap with no grip safety - How JMB intended the 1911 in the first place!!

I've all but given up on the 1911 and tend to now favour my Sig 220 sao.