Had this come up the other day, I am pretty sure we played it correctly but I wanted to check, I declared a barrel roll to the right, when I attempted to complete the barrel roll from the front of my ship it did not fit, I went to take a different action and my opponent pointed out that he thought I could fit if I moved the template to the back of the ship, he was correct I fit and wound up taking that as my action. While it wasn't where I wanted to be technically he was correct in that I had declared that action and as such it was my chosen action.
Just wanted to be sure we played it correctly.