I watched your video and have couple questions:
First, good work on your video. Straightforward and to the point.
Here I go. I always wanted to own a Topre, but instead purchased a Filco 104/bown/Majestouch. I use my up/down arrows lots - how do you get around this? And, I would like to talk further regarding the actual "touch" versus the Filco. Do you feel it's less pressure on your fingers overall using the HHK Pro, and can type faster?
Though I like my Filco my fingers experience fatigue after a few hours constant typing. I appreciate hearing back.
Thanks so much.
Colbabe
P.S: Need to increase my productivity ...bottom line!!