My checkout from flying C150 and C172 to PA28 was 55 mins logged, at the same airfield as pponting with 103 hours P1. I had flown in the back while someone else did his checkout which in my opinion helped considerably. Maybe that's why they don't want you flying in the back, it will reduce the amount of cash they can sting you for.
Sounds like a short walk is indicated. Snag is, it involves yet more membership fees.
It's not easy to move flying schools and all you are familiar with, but I had to do it when management changed where I was, so it wasn't an option to stay. Hope you get on ok.