Brice, strangely enough I was on their website a couple of days ago and was looking at that. I meant to post and ask your very question. I do not understand how that works without some major issues. Fred
Just looking at the pictures....obviously you can't really use the rail when curved as shown above.
The saw tracks on the rail even though there isn't a continuous spine (like rigid guide rails)
because of the series of regularly spaced raised nibs on the rail surface. The nibs spacing must be 1/3rd
the length of the saw base so there are always at least two nibs engaged in the groove in the saw base.