Hai Members, some time ago a user at Ebay had offered drilled pots with E-Nr. in exchange. Maybe one of you accepted the offer? The reviews were all positive about what the sound was about. I had once emailed a buyer and asked for his personal opinion. It was pots for a heritage with interference tube. I quote, “The pots are well duller and also more present in volume. In the stand measured 89db. In the 1st gear at 30 km/h 99db. Ab he not as loud as e.g. Kess open or also AMC, but in some way like the American pots.” Quotation end. I have a 2nd few original pots with E-No. lying in the basement and would like to drill them myself. Which of you can advise me there. Greetings Manni