I think it would be easier to figure out what units/trades are
not meant to be deployed.
The PRes is now 92% (I think) salary of the Reg F.
Cynical me would say to return to 85% for PRes, and take the money you would have saved from the drop from 92% as an "incentive" for folks to be in the Reg F and be post-able.
You want to settle somewhere and not be posted? Ok - as long as you're making 85% of the folks who are willing to be posted. Also, if you joined in your home town and are on this no-posting scheme, you don't get PLD (or whatever the newest iteration will be) because you never had to buy/sell a home due to the CAF, and you don't get to use CAF medical/dental services.
For the folks who will inevitablly whinge about them getting paid less and lose those benefits/services - they will never be posted, their spouses will continue to accrue seniority, and they don't lose money buying/selling/renting on postings.
No, I have no idea how that would work, or if it's even legal. I wonder if I should post that on CAF Reddit and watch the fireworks.