I would plan to be on it first thing. The waits will only get longer as the day goes on.
Or, plan B: realize that you simply can't do every ride. That was a huge realization for us on our first trip; it simply isn't possible to see and do it all. Best advice ever: don't give any one ride/attraction/show/whatever the power to "Make" your vacation. If you see that it's a 90 minute wait for SDD or some other ride you want, balance those 90 minutes on line vs what else you could be doing. Maybe it's worth it to you, maybe it's not. But if you don't see it this trip, you prioritize it next trip, that's all.
So much better to remember all the great stuff you did than the hot sweaty cranky 90 minutes you spent on line for a 3 minute ride.