We would, since we rarely need more than half a day at DHS to get in everything we want.
Enter MK at 4:00 or soon after. It gets terribly crowded along Main Street clear up to the Hub very quickly.
We make a beeline past the Plaza Restaurant and through Tomorrowland to do as many rides as we can before the official party startup. Gets us past the mob, and we've often walked onto 7DMT and other hot ones because CMs are starting to point non-partygoers toward the gate.
The lines have dropped substantially after about 4:30-5:00 in the past. No idea if that'll still be the case but worth a try, IMO. If it doesn't work, we'd probably pop back out to a QS for a meal and then go back into MK.