Once again Singer proves he is clueless. The session win rate is based on two factors. The number of hands and the variance of the game. The reason I win a high rate of sessions playing OEJs is because it is high variance. Those who play lower variance games will win fewer sessions at the same number of hands, however, they will lose less on the sessions that are losers.
Simple math that anyone with even the slightest understanding of poker math would know. Pretty much leaves out Singer.