I just opened my box and am trying this out; have emailed Rain to ask how I can stop this turntable (iLevel) fr swivelling while I type!
Also have asked them how I can stop the platform from jigging (up and down) as I type.
Maybe try this one:
http://www.macsonly.com/macimp/kamas2.html
I have one which I use in Asia (lugged it - heavy!) all the way there but it is good and solid. Had it modified so I could set the tilt angle of the platform and keep it that way.
Ooops! They no longer have the model I have, but there is a newer one:
http://www.macimports.com/macimp/kamasMB.html
If only the kamas would swivel on demand (as opposed to responding to my fingers on the keyboad which is very disconcerting!).
So maybe the M stand is a better proposition for you?