User blog comment:B214/Question & Answers 5/@comment-63.136.113.196-20150525215018/@comment-208.169.95.10-20150529041406

There is no cap to how much you can divide and the wings pour out all the energy Vali can't take the reason Issei was able to overload the wings is because he transferred the power directly to the wings and the wings couldn't take energy.