Thanks everyone,
it seems that from all the replies if you get into GA, you will be stuck in GA.
Although I do want experience in regional flying etc. but cadetships look too good to be true.
I got myself into a J* a320 cockpit a few months ago and met a 24 year old guy that did this cadetship, and he said it was fantastic and that it was great fun.
Some are complaining about the pay, zero to hero in 18 months, what do you expect?