Need to change something. First don't sit 2 hours, more like 20 minutes and then pressure relief. After an hour get off your butt and take a pic. ANY...
I don't use a sliding board. The Quatro might be good, because the four chambers make the front much firmer than the back. I can feel the difference...
Don't trust velcro to hold anything. Its listed as "an unreliable fastener", in the parachute repairman's manual. When its cold outside it looses it...