I too am considering these bars for the shorter drop, but I do have concerns on the sizing. I've read in a few posts here that the size is measured C-to-C at the tips of the barends so the bars may feel smaller on the flats since the ends are flared.

With those who have a 42cm FSA compact, can you provide a couple measurements C-to-C across the top of the bar?

Ultimately, I normally ride a 42cm bar but am wondering if I should go to a 44cm with the FSA compact?