The circuit breaker on/off switch really made switching guitars easy without turning down volume on amplifier... I tested the right angle  1/4 plug to Gibson LP studio electric guitar and It gave me a solid click and the cable stayed in place very well during the 20 minutes test playing sitting down and playing while walking around in the kitchen .  For the Martin GPCPA5 acoustic/electric guitar, the right angle 1/4 plug was pushed in but can't achieve the solid click.. Just flushed tight only .. During my 20 minutes testing, it came loose twice dropping connection ... I know with my Live wire elite 10' cable, I was able to get a solid click connection with both the Martin and the Gibson.  I think this is a plug tolerance deviations between various manufacturers.  I am happy with the sound quality of this planet wave /  D'addario cable.  Perhaps if I ever have to go on stage with this cable, I will have to limit my movements so the plug won't come loose with my Martjn guitar.  I also noticed this cable tends to tangle into mini loops.  Perhaps due to the long length.  Prime membership really shined with this shipment.  I ordered this cable on Sunday evening and it arrived around 8am Monday morning.  I was really shocked of my good karma :)) overall, I like this solidly made cable and the packaging was outstanding too :)