Let me answer the last question first! (I'm also a jammer)
^_^ Anyway, though, I guess I'm trying to say not to underestimate her—she's
way tougher than she looks!
Lots of jammers have slender builds, and are incredibly agile. I'm on the beefier side for a jammer, but I have a lot of power in my legs since I've been a hockey player for so much of my life, and I'm a really good skater. Roller derby is one of the few sports I know of where pretty much all body types have a niche.
If anyone has any questions about derby, PLEASE ask me. I can help you find your local league, bouts, etc. I can tell you where to watch streams (
Home - WFTDA.tv), I can explain the rules, name it. ^_^
-Sharkie