120 pedals experience. PedalPCB has the smallest resistor pads compared to Aion and rullywow. Lead doesn’t go through the other side easily or some times doesn’t stick to the pads. Maybe my soldering lead is not good enough but I got used to it. I clean the flux dirt with a hard toothbrush and isopropyl alcohol to dilute the flux. It will become sticky. I then wipe it down with drops of Goo Gone.