As some other folks mentioned, on a super busy day, you likely won't get all these G+ selections. The best strategy for booking G+ at DHS is to know what you want to prioritize and go from there. I realize you may have your priorities but I do think you should move MMRR down on your order of attack to get G+ as this LL is not as hard to get or as hard to ride standby. TOT, Rock n Rollercoaster, Smugglers are all harder to get G+ than MMRR. We did a 1pm arrival at DHS and stacked over spring break and did pretty good for G+. We never were able to get TOT but we ended up riding that standby and was able to accomplish what we wanted given the high crowds. We did not do any shows but we did take an early even break since we were staying at the Dolphin so we were close by so had we not done that, we could have likely squeezed in one or two shows. And no matter when we visit, we've never gotten a return time earlier than 5pm for slinky so I have no idea how anyone gets a morning or midday return time for SDD.
My strategy with booking G+ LL is to book asap and set your alarm for your next window which will be two hours post park opening, not at park opening. The sooner you book each subsequent G+ LL the better as that will put you in front of those who are slower to book or forget. Make sure you edit your LL priorities in
MDE so when you search for your next LL, you aren't bogging down the system looking for slinky when you're trying to book TSM for example. Also, screen shot all your booked LLs just in case something goes crazy with the technology which does happen. You can take that the CMs under the blue umbrellas to help you with your G+ selections. Don't get discouraged when you see a LL time and select it and the Genie gives you a different time, it happens and it's annoying. Also, if you have a little down time in lines, you can keep checking and sometimes G+ times will pop up when previously there were no booking times open will open. You have to be super fast to get them and sometimes they'll disappear when you select them. Disney IT is not really on the ball.
Because you can't select your LL time you'll be subject to the times you get so do keep that in mind, while I think it will be an afternoon time since getting early AM is unusual, it can happen so be prepared. Book slinky first and then do Rise or have someone who has your payment info handy, book rise from another device logged in to your MDE. The other thing I do to conserve battery and opening MDE is to keep my G+ LL/iLL$ return times in my notes, screenshot that and use that as my schedule reference for the day as I book my LLs. MDE eats your battery so I try to not be in the app much.
ETA- do check G+ times after 7am as depending on the day, sometimes Disney adds refills to rides so if you can't book something, keep checking. We noticed over spring break G+ times would come up around 7:10am for previously booked rides and again about 10 min later. The name of the game is just keep checking and be patient!
