For sure a big cup for his size but this ensures all the feeders stay in. Originally I was using the same cup that I cut in half. Once he grew a bit I used the original size. He has it down now. He will wrap his tail around a branch put his hind legs on the rim and adjust from there. He's a pro now!
No kidding! He acts like this every morning. Can't complain though. I would rather be dealing with him eating like a little piggy then to have to worry about why he doesn't eat.