play 25/21 with an 8% 3bet since that will make marginal decisions in 3bet pots much more clear. it's an easy solution for managing swings. I also think cbetting air in 3bet pots doesn't need to be done often at all, though that may be unique to SSNL where fold 3bet% are higher
i looked up that schmeff guy on PTR; in case you didn't know he's up 250k on stars, and up more on tilt. amazing results for a MSNL reg!