Pete there is a contradiction in the kneeling rule, you say dropped down verticle and also at 90 deg to the forearm, the forearm may be nearly vertical in which case 90 deg to it would be nearly horizontal?
"The hands cannot be dropped to allow the wrist joint, arm or any other part of the body to support the rifle. The leading hand should also be forward of the knee, to illustrate this the supporting hand should be dropped down vertically (90degrees to the forearm), if it contacts with any part of the knee/leg the supporting hand is deemed too far back & therefore not forward of the knee."
HFT, for people with only 2 buttucks!
VooDoo TwoTwo The next chapter.