Say your efficiency playing online is 100% if you're constantly watching and thinking and concentrating on and about EVERY hand played in a 10 person SNG...
Often, my mind wanders or I completely ignore hands when i'm out, so my efficiency say goes down to 90-95%...
Ok, you guys that play multiple SNG's at the same time....what do you figure your efficiency is? ...by playing several games at once instead of only one? 90% tops? 80%? 70%? (obviously, your time is still well spent, since you're there anyway and your overall profit goes up... )
allthough you weren´t exactly asking for a response from me, I´ll hope that it still answers your question.
I play at least 2, sometimes 3 (have to have 2 monitors, better 3) 10$SNGs at Party at one time and in the beginning, I don´t concentrate on the play much, since either it´s extremly tight or wild and lose. And I hate to get a good hand dealt in the early/mid stage since someone is going all-in pre-flop or on the flop and I received my share of getting a beat when I was a favorite and I figured, that it´s not worth it to knock out opponents early on, since I can mostly outplay them later when it gets shorthanded.
I´ll give 100% concentration once 6 people are left and try to put pressure on the short stacks. Sometimes a big stack or even chip leader got there by beeing superlucky and is now playing ultra-tight, cause he is afraid of not making it into the money. Then I´ll attack the big stack too.
So you basically want to focus on the game when it gets short-handed and don´t overplay good hands in the beginning.
That´s my approach and it seems to work so far.
My efficiency kidn of depends on how my mood is. If I'm in a lazy or laid back mood I'll probably won't concentrate as much on the hands that I'm not a part of, so my efficiency might be around 80%. If I'm alert and energetic, my efficiency would be around 90-95%. I'm never 100% though, I'm not perfect.