Hey, something I sort of know about! I can make my first post for you, get out the velvet ropes and holy water!
I know you say you don't want to have to keep looking at flash, but that seems like a sure way to grow an understanding of how it works. Redrawing someone's art isn't just about replicating, it's about observing more closely than you would by simply looking at something. If you copy a lot of flash art (or any style) and then compare it to your own attempts you'll eventually start to understand why certain things work and others don't (a lot of things like that aren't so easy to articulate, which is why there's no substitute for drawing tons to get better). Wood-cuts and blockprints and stuff like that are other forms you might benefit from copying too, since they use minimal shapes to indicate an image as well. Of course, I'm not a tattoo artists or anything I just like to draw, but I'm willing to bet that most of the tattoo artists here started out trying to draw tons of tattoos in the style that captivated them.