I'm trying to rejig my plans so that we have a second day at HS while we are onsite. It'll probably be a half-day either going along in the evening after doing one of the water parks earlier in the day, or going along on the day we leave our on-site resort and move to our off-site villa.
SO my plan as it currently stands is:
Day 60 + 1: 1st HS day. My son and I are going to the ADR breakfast so that he can sign up for Jedi Training. My wife and daughters will make RD and we'll head to Alien Saucers. Mainly because that's the one that they'll miss least if they don't make RD. Then FP for TSMM.
Day 60 + 6: 2nd HS day. We're checking out of our resort, but don't pick up our rental car until 3:00, so head first to HS and FP Slinky.
Depending on times for Fantasmic and Star Wars GS, we may have another half-day during the off-site stay, so we may be able to get another day 60 FP booked during that period. If we do that we'll for for Alien Saucers if the girls missed it earlier in the trip, or TSMM if they didn't. I don't fancy our chances of getting Slinky Dash during the rolling 60-day window.