Ouch, good to know (I have quite a few versions, but all with pads on both sides).
Thanks for informing. Will try to avoid pads in the middle in the future.
Is it possible to drill a small hole? (guessing they are single sided to save money…)
The LEDs are offset 0.5mm in the versions I have. The later designs compensate for this, but i suspect that the distance could vary on other models…