Holyjoe, do you really think a 16 hour JOC ten years prior to flying a jet is any use whatsoever? Do you think, maybe, that 10 years operating the Q400 to be more relevant?
I know someone who did a JOC on a Kingair sim, was that in any way helpful when he started flying the 146? Nope.
A JOC is utterly irrelevant to flying a jet.