For a rear wheel, isn’t a trispoke tested to be almost as fast (if not as fast) as a disk? Not to mention probably easier to mount a tubie onto it compared to a disk (toes over rim method…:))?
Well, with this opposible (sp?) thumb thing I don’t use my toes anymore, but as for aerodynamics, that is the eternal argument.
I use Zipp 999’s. I like those. Tri spokes are good too. Tough call.
I always used my trispoke on the rear when tting,i have a disc but the trispoke just felt better for me.