There are things called heel guards. They create a fill between your heel and the shoe. It might be your shoes are a little big.
I wouldn't think so, as the sole of the shoe will be curved to accommodate the original height of the heel, so if it was shortened the sole of the shoes would not lay flat on the ground where it...
leornanrdo di vinci
so that the heel doesnt slip through the styrrup x hope this helps x
16 inch heels and 11 inch platforms are the highest recorded yet.