There are 2 things to keep in mind with the QuNexus.
First, the pressure response is not equal for all keys. On all QuNexi (is that the right plural
?) a friend and mine have tested (eight devices, IIRC, from different batches), there were some keys that required significant more force to reach the same pressure value.
Second, excercising the same force for a prolonged amount of time slowly increases the measured pressure value.
Reported to KMI, no reaction.
But I bought one nevertheless.
Here’s the device I used:
Here’s the prolonged pressure case: