Thank you for spreading the word and playtesting more!! This is really good feedback for the mobile version. I do think that simple symbology-on-paper approach works better for a crowd that knows games well. When I had my parents play, they also expected to be able to swipe anywhere on the dotted line to cut it. I updated and put more explicit instructions on the touchscreen mode about where you should start swiping from to do the cut. Hopefully that will build that habit better. Ideally I think supporting what feels intuitive to people is best, but right now it's kind of a pain to implement the cut anywhere without messing up the swiping. Eventually I'll get to that.