Kubab, I'm a subscriber of rafeeq, his cline is not that stable, u can try for yourself a 3 month sub and c if it's ok. He is quick to respond to yr SMS but his suggestions on methods to smoothen the pictures so far has not yielded the desired effect, meaning still jerky.
My colleagues subscribed with satgi from another forum and says its smooth, or another supplier with lotsa customer is mikewett.
Check them out.
Good luck in your hunt for a stable cline and plse share them here with the ratification u struck gold!