I haven't read anything in this thread, so if it has been said sorry;
All I can say is take anything screamscape says about weight with a grain of salt. Lance has ranted about fat people and rides since I started reading 6-7 years ago. He is a large guy himself, and he takes offense anytime someone is turned away from a ride for their obesity. I have personally "battled" weight issues, including balooning to 274 at one point and never been turned away from a ride.
If you are overweight to the point you can not ride you are obese and need to make a lifestyle change. /rant