Johnny has a point,
I have some experience with the TRP that has also reaffirmed my opinion, I installed a Barsto .40 Super barrel in my SS TRP and although initially my hand bled during a long range session I am quickly becoming attached to the "sharp" checkering.
I am working with some 200gr loads that are pretty "snotty" and the checkering is invaluable in providing a strong grip that is very stable
I actually prefer the pistol to stay "locked" in my hand and I do not want the ability to shift the pistol in my grip, I have come to disagree 100% with people who want to be able to "change" their grips while firing.
Those who prefer the feature need to shoot a muddy/slippery gun sometime, acquiring a solid shooting grip is a fundamental part of the shooting discipline and I do not want allowances built into my guns, it is my opinion only.
Always test your equipment and use what works for you.