I prefer to wait until I know what I'm doing before I spend a lot of dough on this kind of stuff. In the past I've been stuck with gear that I wouldn't have bought had I known better, but it was just good enough to get by on and therefore I couldn't justify replacing it....I know it's complicated, but it's tough being cheap when you have expensive hobbies.
I'm pretty sure 28 is the way to go, I tried some Indys last night and today I actually tried some Raichle Flexon Comps. 28 worked in both cases.
So, someone hook my up with a cheap pair of size 28 beaters that I can learn on. Otherwise I'm going to end up with a pair of Raichle Flexons that my local shop dusted off this afternoon. I think if I go in around lunchtime tomorrow, I can trade the guy a roast beef sub and a bag of chips...