I have posted several times on this mic, I got it when it first came out. It was not intended as anything but a bodyworn levalier mic, and had a fast bass roll-off, but as a 4060 user I had high hopes. While it did not sound much worse than any other tiny cardioid, it was definitely not what I wanted. What I can STRONGLY recommend is the "modded" 4099, which although a hyper cardioid has a much better bass response and is usable at distances (though I have been running 4 tracks with the 4063s, (for powering reasons, instead of 4060s) to pick up even better bass). I have sent some samples of the 4099 and 4099-plus-omnis to a couple of TS posters who asked, but have not yet gotten up the samples I promised (busy busy until June).
Jeff