My daughters use the recoil shield in the top link for most of their shooting, as do several other women shooters that I know. They swear by them. I use the bottom one for bench work. They come in several thicknesses. No reason both kinds can't be used together. Sorbothane is fantastic stuff. I walk on it, too, and wouldn't be able to get far without it, especially on rainy days and in colder weather. That is what I was talking about in my post above. I should have posted these links in it.
Also important with small-framed people and/or those without much upper body muscle development is teaching them to set the buttstock of rifle or shotgun on the front shoulder muscles and not over on the collar bone. I was in my twenties before it was pointed out to me - wish I knew it in my teens.
http://www.midwayusa.com/product/640...ProductFinding
http://www.midwayusa.com/product/699...ProductFinding