The Humpty is easy to fly, but hard to fly well. Going to take a lot of practice to get the rudder correct on the last 45 degrees of the half loop at top.
The more I practice the Cuban 8, the more I get comfortable with an aggressive initiation of the pullout from 45. Loop over the top, set the 45, count 2K, roll upright, count 1K, then look at the airspeed and pull firmly right as airspeed hits the top of the green at 160mph. If you load it up to 4G, airspeed will peg just shy of the yellow. If you try to be overly smooth, speed will keep building to 180mph.
The sequence is nicely designed. All of the maneuvers that require extra entry speed are after Cubans, where I tend to exit with extra speed. Immelmann, Shark's Tooth, and Humpty all fly better with 160mph entry.
I still can't wrap my head around the lack of a wind correction maneuver. If there is a significant crosswind component on contest day, some planning will be necessary to enter the box at a point allowing for sideways drift.
The 45 down into a Cuban after the Immelmann is fun. The temptation is to gradually nose down and let gravity do the work, but I think an aggressive push to -1G will get a better score. That is probably the teaching point. Have to concentrate not to ease off as you get close to 45 down.
I hope to practice every day between now and the contest on 6 November. Right now my practice sessions are fly the sequence once, then identify a few maneuvers where I need trouble and fly each of those 4 or 5 times, for a total of 20-25 maneuvers per flight. As my tolerance builds, I might get to the point where I fly the full sequence twice, with a few practice maneuvers on trouble spots in between.