if the weight of the recoil pad affecting the balance of the gun is an issue I have found the Cervellati pads from Italy are a good option. They are more difficult to shape with than the hard rubber Pachmayr because they are softer but the weight savings on the but of the gun is outstanding. About a third of what hard rubber weighs for the same thickness

https://www.hastingsdistribution.com/index.php?l=product_list&c=33


Michael Dittamo
Topeka, KS