No need to worry about Vibration or setting up the Cartridge right. It does not get any simpler Hell you can even use it as a coaster for a beer can and then just wipe it right off
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1747361382
Dave
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1747361382
Dave