Suggest you read Arthur Salvatore's text-- particularly regarding MG-1 bearing noise-- at
http://www.high-endaudio.com/RC-Tonearm.html
Any air pulsing will adversely affect stylus. While this arm is cheap, the recommended pump is not. Then check out Trans-Fi Terminator-- more expensive but works fine with a $75 aquarium pump and DIY flow tank. Finally, on a lightly sprung table like Oracle the leveling may change as the arm travels down the manifold.
http://www.high-endaudio.com/RC-Tonearm.html
Any air pulsing will adversely affect stylus. While this arm is cheap, the recommended pump is not. Then check out Trans-Fi Terminator-- more expensive but works fine with a $75 aquarium pump and DIY flow tank. Finally, on a lightly sprung table like Oracle the leveling may change as the arm travels down the manifold.