I'm completely happy with my HD800S, now almost a year old: but only once I got a Schiit Loki so I could boost 20 Hz. All i needed was to turn the leftmost knob on the Loki to 2 PM and also turn the rightmost knob to 11 AM to cut 8 kHz just a bit. Two center knobs are untouched at center noon detent. My original pads are starting to show wear so looking to replace. How big a deal is it to replace the stock pads with the Dekoni? I would hate to damage my favorite headphones. Any tips or videos I should watch?