Thats how I do it... I get about 80%. For my Double RyePA, I dropped my efficiency down to about 65%.
I'd rather have a bottle in front of me, than a frontal lobotomy.
You can't be a real country unless you have a beer and an airline - it helps if you have some kind of a football team, or some nuclear weapons, but at the very least you need a beer.
My Cheap and Easy Stirplate