I haven't installed these Push / Pull pots in my guitar yet, but the initial measurements and feel look very good.They both measure above 500k (513k and 534k), which is great, as they won't load down my Humbuckers. The shaft turns very smoothly, but it's not too loose.I will be using the switches, one for coil cut and one for phase switching, on my 4 wire Humbuckers. The switches have very low on resistance, basically the same as shorting my DMM leads together !I also really like the ground lug at the back of the switch...it has essentially zero resistance to the case of the pot. So I can tie all of my grounds to the ground lug(s). This eliminates the need to solder grounds to the back of the pot casing (and I have ruined a few pots in the past due to how much heat it takes to get solder to flow on the case of the pot).The low cost of these pots has me a little worried about their reliability, but if there is no noise or scratchiness (time will tell), I think I will be a satisfied customer !