Well, after checking again with 2 independent fitters (w/great rep and experience with racers) who had nothing to profit from giving me advice, and my other coaches, I've decided to keep riding my 44cm Ruby.
All of them said I fit well on my bike, and that I don't need a horizontal/flat back position to be more aero, nor smaller wheels to corner or climb better - I just need to keep training! Because I'm small I only need to lean a little more forward to get in my bars, as in a skiing position (while someone who's taller needs to fold over more since their torso is so much larger, like a sail). Also, when I'm horizontal, my knees hit my chest and I don't have as much power. I already gain 1-2MPH when I'm in my aero bars and current tri set-up on this bike (over the summer I switched out the headset spacers and my saddle).
Even though the bike may "look" too big for me, it isn't. Although if I switched to 650c wheels I could have more options for fit, I was able to get someone to figure out a fit on my Ruby that works well for me on this bike for both road racing and triathlon. Mikael Hanson at Cadence helped me set up my bike and I'm really grateful for how he saved me from running out and buying a bike I don't need in order to try and "get an edge" and not really getting a good return on my investment. I have felt fine on this bike all year but thought I could get even more of an advantage on 650c, but now I'm happy to just stick with my bike and focusing on my training.



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