Here I am, trying to eek out a few extra inches of extension!
Old leftie still won't go as high as righty in arabesque (I think because of a weak glute medius muscle on the left - I really must do more clamshells on that side!!).
Whether you dance or not, practicing slow and simple movements on the BOSU is great for revealing all of your body's hidden strengths, weaknesses, imbalances, and little shortcuts. Once you get up there and lift one leg, there is nowhere to hide!
Next time you are the the gym, why not hop on and give it a go? People won't stare (much!) and you might learn something new about the way your body works along the way :)