My Stingray has the same height mast as my A, with heaps more sail area and a lot more feeling of power. What amazes me with the A is I am looking at quad blocks to handle that last couple of inches of sheet tension wheras I don't have that problem with the Stingray. In a bit of a blow with waves on the A, I'm constantly playing the last bit of main sheet and finish the day much more tired.
regards