G'day Den FYI the Angle Razor at kickstarter is a machined aluminium straight razor designed for a precision shave with affordable disposable razor blades.
I am visualising a shave, I placed a feather blade, close the blade and lock it, it screws smooth, like in the video. Somhow i hold the razor at part 7, I am going with the grain on the left side on my face (or atg on the right side). It has been a few days since I shaved, the blade struggles a bit, developing just enough momentum to loosen the screw a bit:ahem:. Next thing! The unscrewing increased the blade angle, the feather tastes skin, it hooks and pivots rather than sliding. ,.....