thanks mate very helpful, now need to decide if I get academy or full size for my sponsorship bat
Waive the same weight of each size around and see what feels better. Most 'shorter adults' find an academy picks up much better compared to a SH. But you aren't a short adult ha ha. So at 5ft 10-11 I would probably lean towards a lighter SH (if you were 5ft 7 I would say go with the academy).
Remember that an academy size bat is 1-2mm narrower (which is probably irrelevant if you use the middle... or have big stickers on the side of the blade!) and some people factor that into the equation as well.
One of the main benefits of academy size (almost half the price of a SH) won't apply to you since you being sponsored...