I've only just gone back to flats after 35 yrs and in the house the thud but within the band setting they sound really good at louder volumes. La Bella Low Tension flats 40-95 lights
I also have my EQ almost flat on the amp with a little bass boost on bass. Sandberg VM4,
If i ramp up the high end / treble on the bass i get a really nice click from the frets / strings when i dig in. Fingerstyle with no nail attack here either. Obviously the sustain isn't same as rounds i was using but we don't play slow songs where bass rings out on notes.
Not sure if that helps at all.
Dave