@espen
In summary we have now the following cymbals working as a 2Box hihat together with the circuit board:
- Roland CY-5
- DIY-Cymbal (made by Jman)
- DIY-Cymbal (made by edtc)
- Yamaha PCY-135 (easy mod required for zone detection)
... it also works with a simple mono rubber pad... but without edge zone
naturally ....
By the way , its good to know that Yamaha cymbals are working 100% with this little mod ... and if it works with the HI HAT , I imagine that we can get a full 3 zone with a cymbal ...

Good point because Yamaha rubber cymbals are really well made , sturdy and thet do sound quiet compared to other products ... I have 2 mono triangular PCY65 and i love them for crash .
.. you can even trigger the bell with them as their piezo is located really close to the bell ... and with an aquarian spring Cymbal holder , they swing and make even less noise ....
I know they exist with an edge switch , and i think those would make a lovely HI-Hat trigger with your board ...