Flattening cupped & twisted boards on thicknesser with shims

[blackrodd]

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Jacob, I see what you mean, sort-of, but it's a bit hit-miss, and it depends on the wind being even, and you *might* not choose the board from the middle (although I agree that's the most likely scenario).....

With practice it can be spot on. Start in the middle and see how the un-planed bits are shaping up. If one end has more taken off than the other you shift the downwards pressure away from it, on the next pass. You should end up with two identical triangles at opposite corners, un-planed, which come off with the last pass.
Takes a bit of practice, as with everything.

Yep! that's how it is done! Like all skills, you need plenty of practice makes perfect. Listen to this man!
Looking logically, why has the presenter got a 12" planer/jointer and a 18" thicknesser, and as for those pad, block thingies I can't see how you have the control over the workpiece, also, you NEVER, EVER, pass you're hands over the cutter like that! Regards Rodders