I heartily recommend the Fishman Rare Earth. They come in four models: single coil; double coil (humbucking) with a "bright" switch; double coil with an integral condenser mic on a small gooseneck extending from the pickup housing inside the instrument; and double coil with condenser mic on a small detachable gooseneck outside of the instrument (above the high end of the fingerboard). I have the double coil with internal condenser mic in both my Lowden and my Larrivee, and to my ears it's vastly superior to the Matrix or any other under-saddle pickup I've used. It's kind of pricey as these things go -- street price is about $275 (American). But for somebody like me who never quite got used to the piezo "quack," it's worth it. I dial in about 80 per cent pickup, 20 per cent mic, and run it through a Sans Amp Acoustic DI, which gives it a little more body, eliminates some residual harshness, and provides a little more EQ flexibility.

Sorry for the thread drift, but I thought this "testimonial" might be worth something to you. Again, thanks for sharing your insights with all of us.