hail areas rubber roof question

If you are a rubber roofer in an area that is prone to hail storms, what sort of precautions to you make to ensure a lesser chance of hail damage, such as fastener designs vs fully adhered rigid insulation, etc, fully adhered vs floating, ballasted vs open etc. .045 vs .060. vs .090?

I guess my question is, when you find damage, what was usually the reason for the failure, and what would you do different to ensure minimal risk from hail?.>>>