I've got a set of Syntace 33 gravity wheels of R2 bike (https://r2-bike.com/SYNTACE-Wheelset-Mullet-29-275-C33-Gravity-Carbon-Straight-SRAM-XD) and they seem good. I've had Syntace stuff before and always been impressed.What carbon wheels have you gone for?
I've also got the Reserve HDs of my Vala that I might try and then sell the Vala with my least favourite pair. Although I suspect I won't be able to tell much difference.