I didn't purchase the kit, but made my own cutting table. Since I cut full sheets of plywood all the time, I needed a table large enough to drop them on without lots of extra supports etc. The top is a full sheet of MDF (which is larger than plywood sheets), I fixed a fence on the working side with a slot (gap in the fence wide enough for the rail) and an adjustable stop on the opposite side for the rail to butt against.
Most of my cutting is right angle cuts, I have the 1080 for assembly and other cuts (the pieces are smaller by the time I need to cut other angles).
The idea of NOT using the MFT rail mounting system is that I'm usually cutting accross a 4' wide sheet, you can't (at least I can't and I'm 6'2" with long arms (my knuckles graze the floor) reach to stand the rail upright accross 4' plus of table.