Kiwi, you are right of course, but I don't have a lot of choice right now due to geographical reasons. When I first learned to fly, it was at a big club and I had (mostly) one Instructor. However, the nearest airfield is as I describe above.
Fortunately it only comes up when I need a checkout. Sad really, because the airfield owner would get a lot more time out of us if we didn't have to wait for 'our' instructor to become available, and we could fly with whoever had time first.
Hey ho!
DeeCee