We stayed at Pop about 2 weeks ago. We got in line for the Mk bus around 7am and were within the first 4-5 families there so on the first bus. The line quickly ballooned after about 7:20. This was on a Sunday morning.We were the first bus to bag check and some of the first people on MainStreet that morning. We did 7DMT 2x, PP, HM, BTMRR, Splash 2x, Pirates, Carpets, and Jungle Cruise by 11am. Afterward a Dole Whip break we did Tiki Room, Country Bears, and Hall of Presidents before moving back to Fantasyland and doing LM, Dumbo, Teacups, Speedway, Space and CoP all before a Plaza reservation at 4:10.After dinner we finished with Philharmagic, Small World, BTMRR and Splash. Now this was with the 7pm close. But I would still recommend something similar to this, maybe not all the extra shows if you aren’t interested, but we were kid free and had never done them so figured why not. Small World was walkon when we did it, but when we tried to do it midday it was a 30+min wait with the line to match the wait time. It’s just such a slow loading ride. The only thing I would have done different is skip the 2nd splash ride first thing that morning. Although we walked on Pirates, it was showing a 30 min wait. But we somehow lucked out and they opened the FP lane and we were some of the first to get to go through so we walked right on.
Yes, we had roughly a 1hr wait to get in the bus first thing that morning, but it made the rest of the day a BREEZE! I would suggest over and over again, if your worried about crowds, bring on that FIRST bus is the key to a very pleasant day! Good luck!