I fitted a 0.015uF Russian-made PIO cap on the Tele I just fitted a BK to (it was a Boot Camp range pickup, so cheaper than their more 'bespoke' range). Even that at full roll-off is too dark and muffled for me to use, but you get good controllability over most of the tone pot travel. The tone cap values make almost no difference to the sound to my ears with the tone on 10, and the theory calcs show it's fractions of a dB change at high frequencies. It's more the effect it has on the sound with the pot rolled down that you need to consider, and that's very much personal taste.