ES - That's an interesting notion, but you may also find as you try to follow that route that there is a floor level in flying hours below which you may not go. True, the F-35 (like other modern fighters) is relatively simple to operate thanks to "carefree handling" or envelope protection, and subsystem automation.
However, it also has a complex sensor suite and has to flight-plan according to stealth considerations, and it is intended to cover a broad swath of missions from CAS to air defense. You can practice those in a simulator - but, ultimately, don't you risk a disconnect between the actual flying experience and the sim?
I heard a long presentation late last year about experience with the F-22 (after about six years of operations) and there was no mention of being able to reduce hours.