Well, I was wondering about that, whether or not I should fill in the cut off end with something. Once I have the blank in hand I will study on that. Right now my main concern is cutting to correct length without making a mess. I thought if the recoil pad I use has a solid backing, I would not have to fill in stock, if the adhesive I use is compatible with the foam.
I am not going to add much at all to the stock, light weight is more important to me than perfect looks. I may use a a bit of acraglass to fill in voids and seams, but as little as possible. This stock is going on my sheep rifle, that sees a fair bit of use as a walking stick-climbing aid, so it will not look perfect for long anyways.
Thanks for the suggestions !