How was the Alutecnos compared to the BM?
Black Magic is definately better by a long shot, reason is that the alu plate on the Alutecnos digs into you as it moves to much and you cannot sit down as then the harness slides up, on the Black Magic this does not happen and so it is more comfortable and you can sit or stand. These problems reveal themselves when you have extreme 17Kg and more drag pressure.
I am definately getting BM on my boat.