I bought those Pachmayrs the day I bought my first 1911, and dropped them just as quick.
I agree that they look very distinctive, but I felt they were low quality.
On the plus side, they make your Springer look like one of 47's silverballers from the Hitman games.
The rubber on my Pachmayrs did not sit flush with the wood on both sides.
The rubber grooves were also too pronounced and collapsed too easily.
The wood got marred easily, and left a much lighter mark.
The extended safety on my 1911 was clipping the wood and it loked really bad.
So I ordered some Pierce grip extenders, and slapped on some medallion grips, and I'm much happier.
The rubber is much firmer on the Pierce grips, and I find them more comfortable.
The Colt grips have been dented by the safety just as much, but there is no discoloration so the dents are almost invivible.