Greetings...

I have also experienced my RAS jumping towards me. It occurs when the friction aloows the blades torque to act like the driven wheel of a car! It is particularly a problem when using a dadoe blade or cutter very tough stock, such as aluminum. Recently a family member bought a Craftsman RAS that had a mechanism that limited this problem by limiting the speed the saw could travel on a carriage. It felt like a shock absorber...easy to pull slowly, much tougher to pull quickly.

I have never tried pushing my RAS in to make a cut. I think I'd securelt clamp the workpiece to the table...thinking the rotation of the blade would want to lift the workpiece off the table when making a cut from this direction.

Joel