IMO, keeping the Underwood in the bridge wings will choke the sound slightly when you're trying to use the Ehrlund. Basically anything I stick in my bridge wings choke up my bass and will loose a little air to the sound.
Anyways, my Ehrlund still generates a little too much noise. I think I'm finally tired of the jack Front End Audio put in and will replace it myself. In the meantime, my BP-100 decided to work again and now I'm torn between the two. The BP is a touch less organic but definitely has more definition than the Ehrlund. I have both on my bass and will use the BP when I need more volume.
Anyways, my Ehrlund still generates a little too much noise. I think I'm finally tired of the jack Front End Audio put in and will replace it myself. In the meantime, my BP-100 decided to work again and now I'm torn between the two. The BP is a touch less organic but definitely has more definition than the Ehrlund. I have both on my bass and will use the BP when I need more volume.