Don't do it david!!! I have used a Chameleon and if you want a nice feathered jib, Don't go anywhere near it, i used to help out at the local film school when i was Trainee Gripping they had a cha' cha'melon, an Elemack and a Fraser Dolly .,
The Elemack first got rented on a Charlie Chaplin film and was in a mess, the Fraser was built like a World War 1 Tank (But worked great once you worked it out, but the Cha' Cha melon was like a Horny Rabbit on Acid.
Stay away from it, buy a Ratchet strap and a Rabbit instead, You will get the same results.
Emster