I usually try to do just one pass, less irritation that way

Depends on your razor. I use a double edged razor (single blade), so at most I will do two passes. That's a total of two blades touching my skin. If you use a fancy and overpriced four blade or five blade then I would do one pass. The less times the blade touches your face, the better. And I've found the double edged razor to be the best in terms of irritation and aggravating acne.

And use extreme caution if you plan to use Acne.org's cleanser when you shave. It was the worst thing I ever did and I am surprised I did it. You want something gentle and soothing when you shave. Using a cleanser that dries out your skin is a really bad option. I use Aveeno Theureptic Gel.

whats your opinion on using a three blade razor?