Our little club had a WWII profile warbird (Fox35 only) event we called the WWII Quadrathon. Originally, it included Stunt, Speed, Race & Combat.
We did combat last for obvious reasons.
Somewhere along the way, we decided that people didn't like the potential of tearing up planes in combat, since it was hard enough to get people to build a plane that got flown once a year.
So, we came up with the idea to substitute Balloon Bust (with high barrier) in place of Combat to save planes getting torn up.
It didn't... the carnage was way worse.

We finally switched the last event to proto speed with a spot landing, which was kinda fun too. Then the event kinda faded away when we moved the club field and had to run mufflers, etc. etc.
EricV