Yes the butterfly switches were pretty bad. Superficially ours are similar but there are a few key differences:
- Ours has an actual mechanical switch (with a spring and contact leaf) that is pressed, the butterfly switches were a metal dome
- Our switches have much more vertical travel (1.8mm) compared to the butterfly switches (~0.5mm). A big part of the issues with the butterfly switches was they had tiny tolerances, so specks of dust or dirt could jam them. Since our switches are so much larger, this is less of a problem
- Butterfly switch arms were made from plastic, our arms are made from steel.