I agree, second half should be completely redone. I also really dislike the brake run, especially when you sit near the front, I find that the coaster brakes way to much, it feels unnatural, almost like the coaster was designed wrong and an excessive braking is needed.
Longest waits I have had for Dragon are for the metal detectors lol, though during the summer months I rarely stay past noon.
The second loop and it's turn-arounds are the worst part of the ride for me. I sometimes think it was designed wrong, in the sense of speed at least. The speed from the first half really continues until that brake run. Unlike other B&M's where that brake run divides the 1st and 2nd half, Hulk doesn't have this, which I feel is its "design flaw".
Typically, I was in the Hogsmeade/Dragons in the afternoon, which could explain why. (I go clockwise at IOA too)