Thoughts on the more obscure (and hopefully more economically efficient) flute brands and models? Altus, Kessler, Yamaha (I would just like to talk about them for a bit), International Woodwind, Asian Makers (Sankyo, Marimatsu, etc.), and maaaaany more. Mostly professional models? Low B, Open Hole, ideally Split E, etc. Vintage v. New models? Although I feel the vintage horns have a better sound, but production and feel is much better on the more modern horns for myself. Plus, I find it a challenge finding Low B Vintage horns. I'm rather interested in the new Kessler that's due to be released soon. I'm really wondering if these Kessler instruments are actually "playable". They work, but do they REALLY work. Long term quality? Tone? Intonation? I've read reviews on these horns, and have seen Dave Kessler talk about the new Flute model on his blog, and can't wait to actually get to try one of these horns. If they turn out to be playable, the doublers life might be getting that much easier.