JOMJ87
Quarry Creeper
I've noticed that the siping helps the lugs shape over things and allows the lugs to bite more... most of the tires on the market have great forward/reverse bite but lack the side hilling traction. SO the sipes going in the direction help with the side bite also.
as far as the siping with a razor blade. I use a siping machine daily at my job and we use a spiral blade that is as sharp as a razor blade. A main reason for siping vehicle tires is not only for added traction but its mostly for heat dissipation.
this is the machine i use.
So who is gonna make a scale version???"thumbsup"
Cole