Re: So i am thinking about building one.
I've not had coaster brakes since I was a kid but was riding with RusticoRay and asked him about his. He told me his worked great and then kept locking up his back wheel to show me every time we stopped. Was pretty amazing.
We switched bikes and had no problem stopping at all. The one thing I did not like about em was you could not spin the cranks to help with taking off. But Ray would stop with them in the rite position. Not a huge deal but do personally enjoy freewheeling cranks more.