Richard:
If for some reason you can't use the staight stock,try this.Run over to Walley World or whe ever you buy you odds and end gun stuff,and pick up a Uncle Mikes elastic butt stock shell holder.get some type of soft pliable foam( I used Rubatex,and industrial a/c type) and put it under the elastic..you can build it up till your comfortable with it,and your head is positioned properly,and save a little money to boot. I punched a little hole in it for my sling stud to stick thru and it doesn't move very much,and if this works you can spend a little more and get a kit from Cabela's to that has different spacers in it to adjust it to wher you was at with the uncle mikes and make it perminent if you want.
I did this with my 1895 GS 45-70 and it works great,also it takes all the slap out of the stock hitting my cheek when it recoils,and it recoils a-lot off the bench. I still have it on there..went thru last years deer season with no problems with it..I have about $8.00 invested in it and I can take it off if I ever need to with out any damage to the stock.
Good Luck
Mac