I really like the cut randonneur bars that I turned into bullhorns, you are right: very comfortable. The frame is a 62cm which is a little larger than my preferred road bike size of 60cm. I have to say that the size seems great now that I have a shorter stem.
Two issues that came up during the build: The Japanese industrial standard for a 1" headset was actually 21.??mm or 13/16". I got very lucky and found a good looking, short headset at Recycle-a-Bicycle in Dumbo (Brooklyn) for $6. Also the standard fork spacing at the time (1974-75) for Nishiki was 96mm, not 100mm. I had to spread the fork a little to get the 100mm front hub into place, but the bike still tracks nice and straight. That kind of stuff makes me nuts, and Hal at Bicycle Habitat told me he can correct the spacing with his fork jig. I will take him up on that soon...being something of a perfectionist.
The chrome was actually kind of rough (rusty) on the non-drive side, I ended up taking off a lot of the chrome and all of the rust with steel wool, then I sprayed the bare metal with rustoleum clear coat.
This was originally a touring bike and unless I am mistaken, they often build touring frames with slightly higher BBs than a road frame, good for longish crankarms. No pedal-strike issues...yet.