Length of pull is a little short for me on my K-Gun in 500/416. Was thinking the easiest solution is fitting a thicker recoil pad for it (or using spacers). Need to add about half an inch. The pad that came on the gun is around half an inch I believe.

Pachmayr XLT Double Magnum Trap Recoil Pad 1.15" Large with Leather Face Black

Anyone have experiences with this pad? I don't want it to be too soft. Or would i be better off adding spacers?