To contextualize the comment that, "...the bass section is more difficult...", it is not that they are harder to do per se, but that they are more revealing of discrepancies. Dampers in the lower treble section are "flat/flat" (with repsect to the felt configuration), so the damper, with new felt on it, will not twist as it seats, regardless of whether or not the damper head is parallel to the string path. Tenor dampers with "flat/(trichord)wedge" will show twist as it seats more readily, as the wedges cause the head to relocate in order to fit in between the string. Bass dampers are either monochord, bichord wedges or trichord wedges. All three of these configurations are the most revealing of…
To contextualize the comment that, "...the bass section is more difficult...", it is not that they are harder to do per se, but that they are more revealing of discrepancies. Dampers in the lower treble section are "flat/flat" (with repsect to the felt configuration), so the damper, with new felt on it, will not twist as it seats, regardless of whether or not the damper head is parallel to the string path. Tenor dampers with "flat/(trichord)wedge" will show twist as it seats more readily, as the wedges cause the head to relocate in order to fit in between the string. Bass dampers are either monochord, bichord wedges or trichord wedges. All three of these configurations are the most revealing of…