Thanks Clint
I notice Mick Davis make statements and he is very reliable and knowledgeable when it comes to all things British 1914-18
A very quick visual scan indicates I was wrong above and the Reserve Squadrons actually were only training units, some primary and some advanced. Having looked again it also seems very, very few were based abroad (could actually only locate two)
Anyway, I still stick to the seller's statement this time....
Cheers
Stig