Lom,
I did say that some very good guys went but in my 9 odd years on the front line, single seat of the half dozen or so guys that went TP from my fleet, none were QWI and I think 1 was QFI. It's also not necessarily a conclusion that they were not good pilots, they were I am sure rated at least Above Average (although in some of the cases I would be surprised!) but sometimes cutting it in a certain role is about rather more than that. Perhaps that's why no QWIs felt the need to go.