I was one of the first to follow Scott's lead, after Bob Hendershot. I find mine invaluable, and this was before the $300 price reduction. I carry a small clamp on my stand to stop it from slipping. They now have a swivel stand for landscape mode(horizontal). I wonder if this tends to slip, also.
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pa4X 76 ,SX900, Audya 76,Yamaha S970 , vArranger, Hammond SK1, Ketron SD40, Centerpoint Space Station, Bose compact