Points:
Potter - the correct term is still retained, as per the latest edition of the Grey Book, Part-time is a duty system that presently does not yet exist and will be for part-time work (I assume set hours rather than the on-call retained duty system).
The R/T Watch Manager with IFE Member unfortunatley - (and I don't necessarily agree but that is down to there being no cross-mapping work yet done by IFE) - this has no relevance to the competence of any FRS staff. The training competence may allow him to apply for a trainer post, as long as evidential, but his WM competence is still only for PAY PURPOSES until proven. At the time what he was told would have been the case and still really is. I know of a similar, reverse situation, WT WM told their comptence was pay only so if there was a RT WM post then apply and take it in development, if suitable.
Captian Cod - the FBU wish to pursue WT/RT? I don't really think this is the case, the employers do, the FBU would agree with me I am sure. I believe that the WT WM should not take up a Ff role as he/she may no longer have a full competence in that role. They should join in development, with a Personal Development Plan, and remain so until competence in the Ff role proven. Skill decay. They could more easily take on a RT WM role though (see above about true comptence rules!). It does nothing to proving anything about levels of training at all, I don't get your argument there at all.
2.And your point is?
I guess when on standby (why does the station need to bring in the RT to standby when the WT are out, surely this is a total waste of money - they can turn out on aleters when and if there is another call?) you carry out assessments of competence (simulations/scenarios), do standard tests, hydrant testing, building inspections, risk assessments and community fire safety? Obviously.
Not so highly trained and not so competent? Well if you say so, good to see you recognising your own development needs. They will be in your PDR and PDP already then?
It seems to me that the council tax payers are paying the same to you as they would to the WT staff, so why should they get any discount? Indeed if they stopped calling the RT to cover at the station, rather than remain on alerters the they could get their saving that way? Personally I think that getting you in and the having you do all those things above, which you must as you are doing the same job for the same pay, is a good thing. Gets more work done and gets evidence toward your proof of competence. Keep it up, don't tell your FRA about the savings they could make by not bringing you in though!