Hmm I dont know because Ive never gone above 400 NL 6-max. But I dont think its as bad as you make it out to be. It would help to have a roll of 25k+ though. Right now im still plowing thru 400 NL 6-max on WPEX and having a great time, but after 5,000 hands or so and a small bankroll increase I intend to make the same move up to 3/6 6-max. If it helps 2/4 to 3/6 in full ring was no jump at all, players skill levels stayed the same.