I just replaced my front shifter cable, both inner and housing. That's done, it's fine, but I was looking at the result and wondering why it doesn't run directly to the drive side of the seat tube. As it stands now, which is the way it came on the bike when I got it, it makes a complicated curve with at least one inflection point in it, which I read is a no-no, looping from the left side and around the back of the seat tube before ending up on the right and dropping down to my top-pull FD. The terminating braze-on is on the drive side anyway.

1. Any reason not to reroute to run from under the top tube directly to the drive side instead?

2. Is there a theoretical right way this should have been done? Or did they already use the best route?

3. Would you expect any practical difference if I changed routing?

Current, routed on left side: