[Suggestion] Stone, Sky, Sea Level and Item Sync

[Rongway]

make a separate hotbar using only skills up to the level the duty is synced at.

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.

[Vyrerus]

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.

I know this, but loads more things have changed beyond that, like if you're trying to do level 60 SSS dummies for instance, Direct Hit did not exist in HW. For the 70(applies to 60s as well) dummies, pretty much every job had large potency increases to every GCD/oGCD since Stormblood.

You won't get an accurate representation of what your DPS is in that old content, even if you were at the exact level/gear for the dummy, because it was balanced at different skills, potencies, and substats than what we have available today. They don't update the old dummies at all.