Would you mind redirecting the host of those games to this forum?
Or pass him the FRA rules?

These hobbies can be very dangerous when safety isn't the main concern.
An accident occurring during these events can cast a shadow on us all.
'It's all fun and games 'till someone gets hurt"

Don't get me wrong, we all applaud events like the one you wish to enter, but we need as many people aware of safety issues as we can.

What is the weight limit?