It's the angle of the armboard as he has it setup on the table, usually the armboards are in a straight line with tt's corners, wether 9"/10" or 12", in his CAD the armboard is angled to the extreme. The way he has it you lose one armpost
View attachment 38785
david
Thanks David. I get it. I will ask Marc if this angle in a must. His arm is pretty short and the round base of his arm is a least 3.5” in diameter.
I saw this position and realized I would loose one arm ever since I saw how he positioned his SAT on the AF3.
Tang