Sr125i---opened the cup, punched out the holes around the driver (8 from each cup), put adhesive felt on the backing of the driver (metal part) and also on the inside of the "button". Put tape around the perimeter of the bowl pads.
T50rp---plasticine around the driver enclosure, plasticine on the driver side baffles, layer of felt on the back of the drivers, plasticine in the deep wells in the cups, 1 cotton ball in each cup (teased apart). Shure SRH840 pads that have been angled using some adhesive foam that was attached to the cup and then cut down. Covered the bass ports with electrical tape.
HE-400---Jergpad (velour topped, double sided taped to cup, no vent), mass loaded outer baffle with plasticine, fuzzor mod
House, Drum and Bass, Trance, Dubstep, EDM in general, Rock in general (Classic, Alternative, etc), occasionally Classical (Yo-Yo Ma, orchestral).