You probably didn't know, but please refrain from making comments about a specific product your company sells in reply to a general inquiry in an open forum. If asked about the Yorkville U15 or U215, then by all means, reply with details. But if not, please don't.Several people have commented about your products already, so it is a mute point really. We just want to make sure you've seen the rules. Please don't be offended and thanks for your understanding.