I was just looking at a close-up photo of a Springfield 1911 on Guns America. It appears there is more grip frame metal in front of the grip panels. Although I have picked up and handled Springfields, I did not notice the diffence in feel. Do you notice that they feel different than other 1911s? Seems I have read a pistolsmith comment about changing the grip profile to that of a Colt. Is this an expensive project? Are the Springfield front straps just thicker, or are there other dimensions that are different also?