By the way, the base bar is the 3T Aura Pro (which establishes how far apart the aerobar support stacks are), and the screw holes that I was thinking I’d sandwich the BTA bottle cage are defined by the AeroCoach clamps. I can provide more detail for anyone interested. It’s a very Frankestein setup (from bottom to top): 3T Aura Pro Basebar > AeroCoach angled riser and clamps > 3T Ski Bend bars > FastTT brackets > TriRig angled risers for arm cups > TriRig Scoops