http://www.turboimagehost.com/p/16471796/1.jpg.html
Edit: Have a link instead..
nice...so he's able to assimilate their traits too.
anyway my point still stands. he had deplteted hal's ring before effortlessly and nno battle of willpowers was involved.
And so I don't derail the thread, I DON'T say this will be the case for Quasar. It's just an indication that the ring can be dried out (depending on the writer)