The lignatool seems overly complicated. The fink attachment is extremely accurate and easy to handle. Score the top cut line well. I wouldnt use it freehand, though. I doesn't take much to clamp a stick, square, or what have you to the timber.
Windknot, I dont know how to post vid or pic. After posting this I will look for info.
I do have a very short vid of it. Also a pic of an alaskan I use with a jig for tenoning, and knifeplate slots. I'm really happy with the timber framer's fence It's not a mafell, but it's the right colour.