Airbus Girl,
Like you, I was a CTC Cadet. I joined jmc on a 757.
CTC and jmc were and are I believe still excellent.
The jmc scheme will pay you about £17.5k in the first year in this new cadet guise I believe.
I paid CTC £200 and that is all to get on the scheme all those years ago. And I joined jmc on £29.9k.
True, i had paid my own £50k at Oxford, but at least i joined on full pay.
Go for it for the training, but for god's sake do not ask for any Southern base. You won't be able to pay for your petrol to work let alone a mortgage on the starting pay........
CTC though are a great training outfit, and if you get in you will have done well. Good luck.