I would guess 40, but like everyone else said, it's hard to tell with the lens/angle. Also, maybe it's just the angle and the lens again but that tranny looks really flat and short to me for a 40 footer. Those guys are landing right past the knuckle, but just a little more speed and it looks like they'd be overshooting the whole thing.
The jumps here are fucked up. They only build table tops and spines and suck at them. The landing is really mellow. They just had a jump up where the landing was the width of the kicker. I landed on the side of the landing every time I spun. Haven't been to HV in while because it is expensive and farther away. Definitely better jumps though, there is actually enough speed to hit them too.