Thank you sir.
Just invested in a new Sirui tripod(with ballhead) based on my budget of $400.
The current set up of camera + heaviest lens+ ballhead is less than 2.5 kg versus the max. load of 15kg for the tripod.
Vibration test using eye and finger is pretty good.
All the discussion on tripods in CS is useful and enriching. Thanks again to all the contributors.