For me a Kahr board is a band aid. Find the real reason why you get resets. (power supply, thermistor, bad connectors, old capacitors, cracked solder joints, etc) and fix it for real. I can understand users want to use that board in a commercial environment because they need the machine working asap.. But home use, find the real problem and fix it. For example if your power connector is charred and you use a Khar board, the charred connector can still damage your board even further. If the thermistor in your machine is faulty, then it very well could reset the machine when activating the ball plunger, because there is not enough current going through the thermistor at that point, dragging the voltage below 5 volts. The thermistor is a very common cause of resets (if it was never changed, its about 30 years old). Damaged connectors/pins/board is very very common as well.
Fix the issue, don't put a Band-Aid over a fracture, it won't heal the bone properly.