Time Trial / Time Trialling / TT

What do we think is the best back wheel option for rim brake tt bike

1. Current cheap vision back wheel which I know fits nicely with a 23mm tyre, with an added disc cover
   
2. a new prime primavera 80mm deep wheel
   
3. Another option in similar £200-300max range
   
   

Mostly for tri use- sprints, half iron, not generally super hilly but not flat drag strips either
Doesn’t need to be used for training, vision wheels can do this job for now