The original Seacabs took guests through tunnels. Nemo blacked them out on one side.
One way to solve this is demand pricing for park hoppers. Add an Any Park-to-MK hop-to surcharge and give a MK-to-DHS hop-to credit.
Good idea, but actually sounds a bit confusing. I agree that it would work for Disney pros like us, but for most people it's a mid-level option that might be too much to handle. Plus, is there a big price difference between non-park hopping and regular park-hopping (without the water parks)? Would the price difference be enough to keep track of which park hopping you're doing that day? It is also not unusual for us to hit 3 parks in one day. Once, we even hit all 4.
Another problem would be people like me who probably want to go to Epcot everyday and then hit another park in addition. My kids are older, and Magic Kingdom is not an everyday stop for us, but Epcot usually is for dining at least. We also usually stay at the Boardwalk, so going to Epcot every day is a no-brainer for us. Would we have that flexibility, and how confusing would that be. It's kind of like restaurant menus--too many choices may not necessarily lead to more happiness, just second-guessing and/or confusion.
Yeah, having a favored every day park plus one more per day might make big sense, but the multiple levels of this could lead to confusion when ordering and confusion when actually there. A couple years ago, my wife somehow miscounted, so we had no park hopper the last day we were there. Oddly, we were able to fastpass Test Track, but we could not get into the park because we had already burned through the maximum 10 days of park hopping. Luckily, we calmly dealt with it and explored the resorts instead, but for some families that kind of screw-up could ruin a vacation.