After commissioning into the RAF from NCO Army pilot, I commanded a Flight as a flight lieutenant and then commanded a Squadron (78 Sqn) as a squadron leader.
I was commissioned as a flying officer (not officer cadet) into the RAF 6 months before being discharged as a sergeant from the Army! (My discharge sheet stated "Primary trade; avionics technician. Secondary employment; pilot")
I received both Army and RAF pay for those six months but was told to save the lower salary (the RAF one!) until the Army discharged me!
I found that commissioning did not improve my distinctly average flying ability in any way!