My Gibson SG Gothic has modern wiring and I had treble bleed caps installed a while back to help with keeping a decent clean tone when rolling down for rhythm work. It worked fairly well with the Dimarzio 36th I had in it at the bridge but it always sounded a little thin/nasally. A couple weeks ago I installed the Manlius Vinyl, an overwound T-top pickup, and while it was close to the tone I was looking for, it just felt so thin and spiky. Finally, on a whim I removed the treble bleed caps yesterday and success! It has the tone I was looking for when rolled down to 8-9 with fuzz/OD pedals and then at 10, has the lead tone to cut through. Not to say treble bleed caps are bad I just realized they had been a tone damper for quite a while. Anyone else come to the same realization?