Changed cleats - been needing to do it for ages and kept forgetting - until about 10 minutes into a ride.
Started swapping out slicks on XC for something a little more knobbly. Tubeless - bit of a faff.
First wheel cleaned and dry seated.
Second wheel cleaned and now drying. Unfortunately, the tape peeled. There seems to be an oil that weeps out of the Rene Herse tyres. This oil got under the tape. Spent an age cleaning off the residual dried sealant. Anyway, hub now drying and ready for retaping tomorrow.