I took some pictures of my SP01 grips on my TS this morning:
And if all else fails, just convert it to an Open gun!
I also undercut my trigger guard, but did not undercut the beaver tail. When I was shooting precision pistol I learned a lot about tuning the grip to meet the natural point of aim; we used big wooden grips and carved them this way and that way so that you could close your eyes, aim the pistol and when you opened them, the sights would be aligned. I used the same principle when cutting the frame of my TS. At first the front sight would be high in the rear notch, so I undercut the trigger guard until the sights were perfectly aligned when I opened my eyes. My 10M air pistol: