This video on saw sharpening by Sellers suggests that most saws can be sharpened as Rip in what he shows as a progressive tooth pattern. It's a half hour plus long. He also suggests filing a "micro bevel" pattern on the teeth that results in the saw staying sharp longer. I'd be curious to read your comments on this.
Here's the link to his site but you should be able to find it on You Tube.

http://paulsellers.com/videos/