PeterP said..
My wing has Y-handles and to date I think I have only grabbed them by accident - I could see some purpose when flipping over the wing but I use the the LE handle for that without problems.
I saw Kai Lenny use them for forward loops, but other than that, I'm keen to hear what your thoughts are on Y-handles and what you use them for?
Use them pumping my 5m Ozone to get a bit more tip clearance and on my 40L board when starting on my knees form the same reason