Thanks you guys
It's actually wierd cos even though I feel bad for ourselves, I feel better now we've made the decision and now we can just concentrate on getting a great home for him - there are already a couple in the pipeline... will let you all know...
He's such a wonderful boy and been through so much (starved, kicked in the face, burned) and so the person who adopts him will be so very lucky. It felt the same when we re-homed another foster who had deformed back legs, but she found herself in a lovely indoor home with a kind child, other cats, a gentle dog and the run of the place so I know it can work out really well
Ahh maybe not so much of a failed fosterer yet!