Steve,
I am a member at Kingston Heath. I hope you enjoyed your round. It's a pity you didn't get to play the 15th - the tee was being levelled and re-turfed as the back area had become uneven.
Just to clarify, the 15th (or any other hole) is not rested every Wednesday, it was only because work was being done on the tee. Sometimes one of the par 3's is rested, but that is rare. Normally on the 'Wednesday course' you go from the 1st to the 12th, and don't play the 19th.
The reason this was done is it allows a 2 tee start, which the regular routing does not allow due to the 10th hole being out in the middle of the property.
Logistically, this has worked very well and allowed for bigger midweek comp fields. However, being a 25 year member, it still feels 'wrong' every time I play the course that way. The flow is different, and the 'previewing' of holes you are about to play, and some pin positions, is messed up. I much prefer hitting off the 7th tee on Wednesdays, as this still means the last 7 holes are played as 12-18, so the strong finish is retained. You also get to see the 17th pin from the 7th green, which is important. I always book on the 7th tee if possible.
It is an interesting question for those that haven't played a course before though, I agree. When reviewing a course and discussing it after playing it, it can be confusing to have played it 'out of order'. When I took Ed, Lloyd and David from GCA to KH last year we played on a Wednesday, and while they loved the course, I know it was a bit confusing when disussing the holes afterwards.
Interestingly, the Australian Womens Open was played over the 'Wednesday routing', so the finishing holes would be closer to the clubhouse. The organizers felt this would be better for the spectators and atmosphere. It worked well.
If we had got the Presidents Cup, this would also have been the routing, because matchplay matches would have finished closer to the clubhouse, and not down in the far corner where 14,15,16 are.
Cheers, Rich.