simonmunro,
We have done the HDD before e-ride night and it worked out just fine. We got our wristbands at 4:00, then took the boat over to FW for the show. We left right at curtain call and were the first ones back at the boat dock. This was a good idea because within a few minutes the line for the launch was very long and I'm sure not eveyone fit on the first boat. HINT: sit in the bow of the boat (outside), and you will probably get to see the MK fireworks from the water! We did and it was very special. We arrived at e-ride night a few minutes late, but since we already had our wristbands we were able to start enjoying the rides immediately. We had a terrific time and I would do it again! Have fun!