Was not suggesting foe one moment trying to fly aeros without proper training; I come from a very highly regulated background (also one in which both incipient and fully developed erect & inverted spins are practised so much they actually become quite boring), just that such proper training does not have to be for comp style aeros.
While the competitive arena I'm sure provides a suitable incentive for many to develop their skills, this is not the only way to constantly analyse and improve your handling.