Just got an E-mail from MF and they're advertising ART tube mic pre-amps. Anybody have any experience with their products? Likes, dislikes? Just curious and I know you guys will give me the feedback that might lead to a discussion about Stonehenge or child rearing which of course is more interesting than the actual question but there will be interesting tidbits on mic tube pre-amps that I may digest and put to use. Thanks again in advance.