You may already know this, but I'll mention it anyway. The 4 PLUS options on your hopper tickets do not expire--just like the 5 park hopper days. Even if you use all of your 5 hopper days and only two plus options, you can still tuck those passes away and use the other PLUS options on a future visit.
This may really come in handy if you decide to go the AP route for your next trip. You could purchase the Standard AP, and use your leftover PLUS options to get the occasional water park "fix".