Crab
Hawks and SAR rotary have standard routes in, through and out of Snowdonia which are generally at low level
The hawk jockeys do a lot of low-level work, but regularly fly at all levels. Also, although they file a FP, they rarely stick to it (this is from the horse's mouth).
Re the 'phone a friend' idea, I appreciate this might cut down your workload, but it's fantasy for GA land, particularly the rotary owner community, which is almost exclusively comprised of individuals who resent asking anyone about anything that might risk denting their ego.