The usual method of getting some downward angle to the scope mounting of just putting a spacer in the rear mount has had me concerned for the past few months. To my mind this must place an enormous strain on the scope body and the works about the reticle.
I think I may have found a simple answer.
Cut your spacer fairly narrow, 3 to 4mm will do. Stick in place at the rear of the rear mount. Sprinkle some "Quickbond" powder on both mounts. Gently place the scope onto the mounts and rock the scope from side to side. Do not press down too hard or the powder will stick to the scope and not remain on the mount. Make sure the scope body touches the metal surface at the front of the forward mount as well as the spacer at the back. Gently remove the scope from the mounts. If satisfied with the shape and condition of the powder remaining on the mounts apply the catalyst. If not, goto 3rd sentence.
The Quickbond sets in seconds and I now have angled scope mounts.