happened to me while sledding in december..
was out of sledding for a while.. my back is starting to be ok..
it was extrem riding ( i compensate the sleds limited deep snow capabilities by driving it in a "special" way

)
had 2 co-workers with a JAG LT and a skandic WT 24 inch with me on that day and they were impressed to see that such old sled can still kick ass in the deep snow when driven properly...
and i hurt my back doing so.... i ain't getting any younger.
Fr0st