Thanks for your response. I feel as though I have some idea of what I am looking for... I wasn't aware they were completely different. I surmised those two from a combination of what i perceive my needs to be, reviews given on both, anecdotes given about the quality and price (...I know there are plenty of people who feel both are 'overpriced' and a soma rush is a great option) and aesthetics. I was under the impression the bolt is slightly more aggressive, but not necessarily real pursuit geometry as the sloping TT was negated by it's length and the height of the seat. I have read about the differences of steel vs. al, but only have experience with steel BMX bikes, and al track bikes. I would like something durable, but am concerned about rust, as I live in the midwest.