I'm not a professional mechanic. This is my first experience with building a bike. I cut the cable housing in the rear a little short and had already gotten everything running smoothly (with much effort) and didn't want to take a chance redoing it at the expense of messing up the shifting. In the future if I order another frame I would ask them to place the internal cable routing exit on the top of the chainstay instead of the bottom like I have it now. It's approaching the rear derailleur from the wrong angle, bottom instead of top, (nothing a zip tie can't fix
). It wasn't something I knew to question when I ordered. As far as the bar angle, yeah it was a little low. I raised it, so now you can rest easy.