How much weight do I need to lose for Harry Potter and the Forbidden Journey?

[Physics]

Can you say, "what is a snow balls chance in hell". Honestly no insult intended. My girlfriend is 5'3" about 220lbs and she could not
fit in the test seat. Sorry, but this is one thing Disney clearly has over Universal. I have never heard of a Disney guest not being able
to ride a ride due to being too big.

This is a great point! Disney made the decision to accommodate nearly all body sizes and shapes. Universal MADE A CHOICE TO NOT and for some of the rides it seems that a significant percent of the US population do not fit. This is not due to ride requirements because of physics, IT WAS A DESIGN CHOICE to make the seats small. The seats for any of these rides could have been designed to accept most people.