It looks like you've already decided to go for it, so that's Great! I think it will only add to your level of general stick control.
I play brushes often on jazz gigs, and not at all on my main rock gig. I got a brief intro to how to play them from my first teacher in college when I was 18, and then was left to figure out the rest for myself (odd to think, really, that the 4 or 5 teachers [all jazz] I had after that never bothered to check on my brush technique at all). I've always wanted to delve back into more study when I see what some real brush masters can do musically with them. I also figured out in my mid 20s that that teacher had shown me a backwards left hand technique (pushing out on 2 & 4, instead of pulling in) from the way most people do it and by that time, thats what felt natural and comfortable, so I feel like when I do get back into it I'll have to break my technique down and start from scratch. I'm looking forward to it though...
Good luck with your study!