The problem you have is that there aren't enough of you to make a separate category, so race promoters group masters into either 30+ or 30+ and 45+. I assume you're familiar with this link
http://www.pazzovelo.com/events/. If you're prepared to travel, go to Southern California
http://www.socalcycling.com/. You can race your brains out. I don't have many races in my area, but I've got a rich set of choices just 4 hours away. Actually, I'd rather have a group that does fast training rides and I'm fortunate to have a couple here. And, we've got a training crit every week. That's fine with me. When I go to the trouble of driving 8 hours round-trip for a race, I assure you I'm not going to get dropped, even if it is the 30+ group.