ZILtoid1991, I'm designing some MIDI controller with magnetic hall effect sensors and #gateron KS-20 series switches, in the style of those Jankó keyboards. I'm not only getting around PCBWay's prices, but also creating a very nicely scalable system. I would need some extra info on how I should place the sensors (Gateron's material shows it on the bottom, which will make my life harder).