That works around hotbar problem by artificially restricting the buttons available, but some actions get traited up in the levels after an expansion cap, so there will still be a little bit of fudging going on for some of the jobs. RDM, for example, gets +50 potency to Displacement, a 5% magic damage buff on Manafication, and a reduced cooldown on Contre Sixte by 80, all of which will inflate numbers a bit higher than what they would actually be at 70.