Made me first trip to the local dealer and started talking about the machine for me. Sales guy asked quite a few questions and we ended up talking about a larger B model or a smaller L model. He was pushing me towards the L. While staying in roughly the same price range he felt the L would be a better choice because I will be doing quite a bit of work on steep hillsides in a vineyard. He said the heavier machine would get better traction than the lighter framed B. Any thoughts on that?