I'm not 100% sure if this is a popular opinion or not. But I've got a suggesting to tighten rules on "prepped runs".

It's possible to save the state of the level fences by leaving the game (thus saving the level state) and then starting with a new ball, this causes the fences you already broke, to be still broken during a new run. Especially for No Boulder% it's very effective. One could do a prep-run to pre-break all or some of the fences and only start time after starting the No Boulder Run. This gives those players a big advantage over people who start a "clean" run.

Basically if someone uses pre-broken fences, should the time it took to set up the removal of the obstacles not also be taken into account?

Note: This also happens on accident. We quit runs all the time and restart through the main menu.

Workaround: Pressing the Restart button in the in-game menu re-spawns all fences (and other physics objects).

An argument could be made that it's worth taking over half an hour to prep your fences between each run to save precious seconds...