Wednesday is better for those (including me) who will want to race at the weekend, that's why I opted for that.
I think I'll set it up so that you warm up prior to the ride and then its 16.1km flat out on whatever course we choose and then the timer stops when you reach 10 miles...The flats makes sense as there's not much point in prolonging the agony too much in the first ride.
I would suggest getting on a TT bike (virtually!) so there's no drafting and then its a true effort.
Hopefully a few people up for a mid-week 10 next week,
Neil