[Macbow]

Firstly you need to make sure your bow hand position is correct and repeatable. Try holding so your hand is quite high on the riser. If your bow has an arrow strike plate hold it so the arrow is towards the top of the plate. Once your hand position is right mark your nock in the same way you would for a bow with a shelf although you'll probably find that a higher nocking point is more forgiving - too low and the shaft will kick off your hand. My Hun bow shoots better with a high brace height, a 2 o'clock cant and shafts that are 10-15 lbs lighter than the draw weight with small feathers. Correct hand placement gives me noticeably less hand shock. At the end of the day you'll just need to keep experimenting. Kassai's Horseback Archery book is useful and a great read.