have you heard of doing it by 10? makes it a bit faster
I sometimes do it that way, but I don't need to. I can do it the normal way in about 13 seconds, and at that speed, doing it using base 10 really doesn't speed it up by that much (only by 1-2 seconds on a perfect run - basically, it's only a matter of how fast I can spread through the deck card by card).
The plain and simple easiest way, though, I think, is first to use base 10, and secondly, to verbally restrict the cards to only number cards - that way, you never have to look at 8 picture cards in the second run through.
But really, I honestly never had any trouble with doing it the way Paul gives it - and I'm fast enough doing that that using base 10 is nice, but not at all necessary (I'd only use it in combination above to ensure I look for 2 cards max, not 4 the original way). I've read a lot of posts about people who don't use it because it's too challenging for them though. I've never really understood that, but if that does happen to people, then base 10 is definitely a lot easier.