Thank you for the excellent advice about changing careers, which I am in the process of doing as I write.
It ain't half challenging changing though, and yes with hindsight I should have got off the 146 a while ago but plan to get out of aviation altogether.
When I started flying the 146 it seemed a really good aircraft and one doesn't necessarilly imagine that it might be doing long term damage and take the correct action.
After all, all the experts said there was nothing to worry about.
They would say that though, wouldn't they?
I am a simple pilot, after all.