Have you used the "V-Treb Variable Treble Bleed Circuit", and if so, what are your impressions? A link is below. I apologize if this is an old topic, but since the site's search functionality is down there is no other way that I know of for getting this information.
https://pmtmusic.com/variable-treble-bleed
https://pmtmusic.com/variable-treble-bleed