Short answer: yes.
We did exactly that with the Twister II we have at the office, but, you will have to do some work on the legs first.
The Legs on the Twister II are already the standard height, so just adding leg levelers would make the table too tall, you will therefore need a miter saw or table saw (to ensure a square cut, crucial) to chop off about 4" to accommodate the height of the leg levelers.
Rather than the Home Depot option (mainly because we didn't think of it) we bought leg levelers and the T-Nuts from here:
http://tornadofoosb.powweb.com/store/page23.htmlYou also need to drill a hole down the center of the leg for the leg leveler bolt, the hole obviously needs to be wider than the bolt, but narrower than the fastening holes for the T-Nuts. Once the legs are cut to size and the T-Nuts are fastened just screw in the leg levelers and off you go.