Conclusion: if I want to appeal a 12mm chipboard, then the Saw OK. But I want to cut, for example, a laminated wood or a kitchen countertop made of oak, the unit is overburdened. Rail or not, once the timber makes some resistance, the device twists, the cut will be crooked, and the blade jammed. Start already doing the effect at one meter long cut in 16mm OSD plates I should have equal what should, or Makita Metabo buy decent.
Addendum: the cause of the unbalanced cutting is that the machine is not mounted parallel to the guide plate and therefore the blade "angle" is. Because the machine is not threaded onto the guide plate, but riveted cheaply, can the also not correct / readjust like a real tool.