Ops and Mops, you mis-read, or I did not make myself clear.
You held a commission therefore getting a reserve commission was a shoo in. Fast track warrant officer conversions do not have to do the full blown IOT but they do have to do OASC to ensure that they will be suitable and responsible as officers.
I stand by what I said, if a doctor, nurse, or civil servant does not cut the mustard then they do not get the uniform. Met class J reserves just might be an exception, I am not sure.