Reply by sras

I think Gerry is on the right track (no pun intended) that 2 runners makes more sense as the sled gets larger. I have 2 runners on my large sled and I think it is a good setup. A heavier sled could be a bit much for a single runner.

I would also suggest that if you have an outfeed table that you limit the travel of the sled. I did this on my outfeed table . Then if you enclose the blade on your sled fence you have a very safe setup. You can see what I mean on my sled .

-- Steve - Impatience is Expensive