You'll be fine. If brownie-cheap-ugly-thin single sided perfboard can live long, why not for pcb? Theyre thicker. If you worry, you can build or buy pcb secure mount for reinforcement. Best combination for odd knob or triangle formation, rarely see if build 4knob or 6knob. Still worry? Build with mounted screw.
Learned this from some session player at my friend cafe.
Learned this from some session player at my friend cafe.