@nathanu I didn't really look at Katabatic when I made my decision.  Looking at it their website now, it seems that there's more available customization over at EE.  Just my own gut feel.  But I've been super happy with my EE 20F Convert, that I also got a warm-weather 40F stock Revelation when they were on sale last year.  As far as your concerns about reinforcement, since they're a lightweight option with down feathers, I'm going to treat mine carefully regardless.  But I haven't had any quality issues thus far.