Purchased the ST1400 and also the ST2800 tracks along with a compatible Circular saw, the R185CCSX. Both tracks are excellent and the clamps work perfectly. Very easy to set-up, saw is easily adjusted to keep alignment within track. Bought to use to accurately cut Slate slabs with the R185CCSX paired with the 185mm Diamond Blade 'for mitre saws only'. Track provided exact alignment and perfectly perpendicular cuts. I ran the saw 3 times along the track to cleanly cut through the Slate. Plan to use the ST2800 track which is identical but longer for sheet material for my next project.