Picked up a sample of a moss from between the car park and pond dipping platform a couple of days ago. After keying it out and browsing possible candidates for a keying "wrong turn" it looks like I will have to settle for genus level without setae. I have learned a typical key path for acrocarps with hairy leaf tips though (jump to key step 81! 78 is acrocarps). This is the one here - the more "fluffy" one on the left of pic #1.