I would like to know what the differences between the top-mount (ohlins,hyperpro,etc.) and the rotary type (GPR,Scotts,etc.) are and which one would be a better choice. One of my thoughts on the top-mount was that it might be more prone to damage in the case of a crash. I really liked the way the GPR damper felt while riding the schools bike but am just curious about my options. Any feedback/advice would be greatly appreciated. Thanks!