this is kind of off topic, but that is funny, making a timber less square- and with a power tool! i understand the pleasure of process marks, but it's in their referencing a process. [though i admit, to get a similar scalloped look as in that 3rd video there, and to create an edge tool surface, i've had some success (and a pleasant time) with a curve faced slick, bevel down.]

they should totally rename that tool from whatever number it was, to 'the power adze'.

apologies for the aesthetic diversion from the really helpful drawings that have been done up here by others. we've got a pergola in the works for the deck this summer too- thanks for the expertise.