I've been using 44 cm bars for years with total comfort except for the standard drop/reach being a tad far but that's all we had until shallow drop/compact came out. I'm switching to a shallow drop and was wondering if I should go to a 46cm? I guess that would open my chest a bit for breathing yet be less aero in exchange for it--maybe other advantages/disadvantages? 44cm has felt fine all this time and my bike was pro-fitted with a 44cm as was an older bike. I should add that I mtb a lot and am using a much wider bar than I used to use. Thoughts?