5 hours for transitioning from XL2 to Warrior sounds like a lot of time. I would say 1-2 hours for the average pilot. (I took my PPL on the XL2 and did a checkout on the Warrior after PPL completion, it was my second SEP to fly as PIC)
The Warrior really has no suprises, the checkout is a non-event if you already got your flying skills in place.