The important thing is that you can - and should - log everything that you do. Whether the CAA will count it towards licence issue requirements is often secondary to persuading companies (i.e. their insurers) that you have the experience for the job that you desperately want.
I found this out the hard way, by not logging about 400 hours as pilot's assistant on the Bandeirante in the early 80's. A few years later and people were put off taking me on because I didn't have a log book showing turbine hours. Of course the company was long gone, so they couldn't vouch for me
Still, all came right in the end...
