For a bendy handle bow I have the arrow pass "1 above centre. The Mediterranean release stress is centred around the point between the middle finger and the ring finger around 5/8" to 1" , which coincides to the centre of the bow, if the arrow pass is around 1" above centre. Like Jawge says many methods will work.
I feel that bows with an arrow pass 2" above centre, look like the stress in the limbs is unbalanced. It may not necessarily be the case, but it is my preference and it makes the most theoretical and practical sense to me.