While these pots are one of the best mechanically, because of the fixation ring on the shaft - you will not break them while putting on the knobs... But the resistance and taper values are far from advertised. 6 or 8 pots I received the taper was only around 15-16% at half of the pot turn, so not far from regular CTS production. Others were around 25%. I previously bought 500K ones and all 4 pots in the the set was also just around 15%. I'm not sure if it is just me, but buying Mojotone pots is like a gamble - you never know what you'll get.