Paul,

The 10% scale rule and box excursion rule I would think are simply not strictly enforced as opposed to being ignored. I personally like having the rules there to try and keep IMAC within the SPIRIT of its intended purpose. Without the rules, there would be no stopping someone bringing a 40% pattern ship (extreme example) and competing in unlimited. If we remove the 10% scale rule, it would then seem appropriate to remove the !QUOT!scale!QUOT! from scale aerobatics.