Thanks for the responses.
I have absolutely no expectations to be fast tracked due to my (minimal) experience - I did most of my initial flying on a UAS so aware of the different instructional style and syllabus. I was more interested to see if having the experience would be a major turn-off to the guys at Cranwell, before I went down that route.
Finance-wise, a PO earns much the same, if not more than, a typical cadet/new FO in Europe. I'm fortunate, in that my debt is not astronomical.