Don't forget many of us are gymnastics coaches, there is only one answer that we can give.
just like an ambulance driver has to take you to the hospital even if its just a minor problem. Because if it turns into a major problem they can be sued for negligence.
The same applies to us, if we reccomend someone goes and does their inconsistent flips at home and then we can be sued too, so you won't ever get it.
Gymnastics mats are expensive because there is limited call for them. They are generally just brought by gyms so the manufacturers do need to make money, as they are not selling hundreds of mats a day. The foam is denser than normal foam so it is more expensive for that reason too. Anything of a poorer quality is not as safe and not as effective.
if your flips are inconsistent, taking them outside at this stage could result in a very serious injury or even death. We do understand that the idea of free running is to be able to do it outside but a good quality free runner would learn the tricks safely and consistently with a teacher before taking them outside.
Open gym is not designed as a chance for you to teach yourself tricks. If there are people doing this at your gym this may be the reason for the I juries. Open gym is designed to compliment a gymnastics class. So the gymnasts train in a class and then use the open gym to get more apparatus time to practice skills that they are already working on with a coach.
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