Collection without a bit?

About a month 1/2 ago I bought a 5yr old QH. I had been schooling him in a light snaffle then found out he had tounge damage (got it before I had him) so that was awsome anyways Ive been riding him in a jim warner hack, now im trying to find something to get him collected and round, I bought this wannabe bitless bridle attachment on ebay used it once and hated it, any suggestions on headgear to school in and getting him to collect without a bit??????