Hello all just interested in any feedback as I've seen some reports out there about frequent and sometimes mysterious shear pin breakage on Ariens machines. I had a previous non-Ariens machine that never broke a shear pin and on occasion did get some gravel from the drive (1- 1.25"?) into the system which it handled. Make sure to clear larger hazards before a snow. Thinking about an Ariens compared to a Toro that apparently doesn't need shear pins - can the Arien's handle the occasional piece of gravel or will I be constantly replacing them? Thank you!