RA STN
70% is the pay you recieve compared compared to a full time FO on a 100% contract but you only work 7 months of the year ( Apr-Oct ).
I believe a full time FO gets just over £40K so 70% of that is around £28K. If you have to pay £20K for a TR then you are left to live on £8K in the first year. Its more than the dole but not by much.
I would think that with BA, GSS, and all in the Middle East already recruiting and rumours of many more recruiting soon in the UK then Jet2 will have to up their game in terms of conditions. I expect that they will have some of their full time Capts and FOs will be applying to BA etc which will increase there recruitment needs.
Regards