Hi Miller
Not having really a clue about filters, I find it somewhat strange that [hip~ 7000] just cuts everything. There is no sound at all coming through a [hip~ 7000]. Shouldn't it pass at least some of the frequencies above its current setting?
I see the previous behavior (still available with the 'compatibility 0.43' setting) is also strange. When using a setting above 3000 Hz, it actually enhances the part it passes instead of only cutting the lower part.
I used H10.measurement.pd to get the frequency and phase response. It clearly shows the oddities (or is it supposed to be that way?).
Roman