Thanks for the advice! We'll be there for 2 full days, plus what is left of our arrival afternoon. We won't be doing Volcano Bay, just IoA and US. It's just so hard to get out of that planning mentality, especially because we'll be doing WDW following the Universal days.
surely, you will find yourself standing in line @ WDW afterwards (even with the best touring guide) fondly day-dreaming re the EP. I always try to add it onto the end of our WDW portion of split trip.
Other than around
HHN time, rarely do more than 3 days each visit (but multiple visits per year - yea!). The WDW portion of my trips is prepaid/DVC most times. Starting doing U on the pricier point days of weekly trips (Friday & Saturday) to give us 3 days there. Always excited to be there even if just for 1 night/2 days. We do have APs to all 3 major parks, gives us flexibility but I do know what parks/what days before I depart.
Once a commando, always a commando. Well, not so much for me re U planning, but it's how i roll in general. Not going to stop on vacation. Even at U when i wake up know how I generally want to time my day as to the train to other park & make it happen. The EP allows for plenty of impromptu rose-sniffing. Also, I do make dining res in the parks as I'm admittedly type A and not fond of waiting for a table anywhere.

. We know who we are lol
If doing the Pterandon flyers @ IOA with a the appropriate sized child, you do need to sprint back @ rope drop to avoid that slow-moving line. You can add the Raptor Encounter into that category too, IMO not to miss first go-round.
I think you need to add me and most of the regular posters and not just Schumi, as needing more than two days to do all the UO parks
Most of us enjoy taking our time and not dash from one ride/show to another during our days there
But for those that have a set two days only and avoid the major holidays, they can see and do a lot
Rides have gone down before and it changes people’s day schedule
Last visit I waited in the ep line for 35 minutes before it was announced ride down and unknown when it will be operational
I’m not a major potter fan but it usually takes two hours of my time some days
( do the ride, watch the live show, eat, window shop, grab a butterbeer)
I admit to being in minority here, but appreciate that others do their own thing. No wrong or right way to enjoy Universal...it's all good!
We love the HP franchise but when it's crowded, will often depart after an hour or so since we know we will back, if not this trip one of the other ones. I get enough of the sardine effect at WDW.