Alternatives
I’m getting the itch to make another frameset, in the through axle road 650b format. So of course I had to mock up a couple of variant frames (traditional triple triangle flat-topped & a heavily sloped TT w/ a vestigial triple triangle) which I will sit and think about for a few weeks until I gather all of the tubes I need to make up a frame. The keel (HT/DT/CS & at least the lower half of the ST) will be the same either way, so in the worst case I can make that part up and then dry-fit the TT & SS’s against it for a last-minute decision.