[ QUOTE ]
70% Win rate... not ROI.

and you need more than 10 buyins, like 30+

[/ QUOTE ]

I disagree with both of these statements.

I've got a >80% winrate at the $10.50s on bodog over 500 HU SnGs. I've likely been running hot, but the odds that I really should be at 70% are insignificant (at higher stakes, I assume this is nowhere near possible).

Also, variance in HU SnGs is very low, so I doubt you'd need 30 buy-ins if you've got a winrate of 60-70%. 15 should be fine.