The recruitment process may be the same, but the training may not be. You need to remember that recruiting for wholetime means the selectors can choose the best from the whole country and thousands of applicants, and for retained its within 1 mile of a station, and thanks to this it is possible that to stay on the run they would accept minor flaws, and in wholetime they wouldnt have to.
Not saying you have any flaws or problems or issues, but there may be people out there when you are looking for wholetime employment in the fire service, that are simply more suited than yourself.
Good luck to you if you do go for it, it is more than possible, you just need to prove that you are the best man (or person) for the job.
@ jmzgee, same thing goes really. You may well be a damn good firefigher, but in the eyes of the people doing the selecting, you need to be better than the other potential recruits. I don't know if there is any counties that yet have a scheme where retained firefighters can just transfer over, but where I am, if I were to get accepted for wholetime, I would have to do the full course, despite firefighting for over 3 years, so there would be no advantages in picking me over any other applicant, unless I was the best and most qualified candidate. It may well be the same where you are.
I've waffled on enough. Shut up Toby.