Have to agree it would be good to boost up your winrate, but that goes without saying to be what we are all looking to do when playing poker. I believe a 55ish % itm on don's is the breakeven point, so even at 60% you are bringing in a profit and keeping the same rate and increasing your volume would in itself increase profit also.
A 75% would certainly turn a great profit, especially given the low variance of the don games (wish pstars still had them, this fifty50 racket rots me so have actually been grinding reg small stakes sng myself lately).
Currently trying to freeroll a bankroll on either carbon or bcp to get me into the DoN games. Site you playing on crazy?