Just curious, but if you rebult everything, why not get DOT4 rubber kits and switch to 4? I've never looked into it. Is there something other than rubber parts that eliminate that as a possibility?
Don't even have to do that Chuck. For example the only differnece between a Harley chrome master cylinder kit for 05 and later and pre-05 bikes is the lid on the cylinder. One lid has a DOT5 warning sticker while the other does not. All the rest of the brake parts could care less too.
Truth be told I wimped out last night. Grabbed a quart bottle of DOT5 out of the cabinet. Had premonitions of bleeding and pumping and bleeding and pumping and crying and yelling and screaming and bleeding and pumping (because, well, that's just what you do with DOT5 sometimes). But I had allowed the possibility of options.
Had flushed the lines while rebuilding the calipers and rear master cylinder. Front master cylinder was new with the chrome kit. So, screw it. I filled it all with synthetic DOT4 and had both ends bled in about 45 minutes.