I agree...at least in theory...it would seem like the best way. I'll have to wait until I get the lumps machined down to the more appropriate sized 'T' and machine the 'T' slot in the block. Again, since I don't have a full sized milling machine, these will be a challenge. But, that, in part, is what this is all about. Can it be done without heavy machinery? I'll have to strip the action down which I'm waiting to do. When I bought the gun, I wasn't sure if I was going to cut the barrels down,but, I found they were in pretty decent shape. and wanted to refinish the stock, which I'm fairly close to finishing. I carved a 'shadowline' around the cheekpiece and have put about 8 coats of truoil on it, replaced the buttplate with an original and have ordered a white spacer to dress it up a bit. P.S. your design is rather elegant, I'm still absorbing your info!