A free update on sampling in V-Ray 3.3 Chaos Group have really pushed V-Rays development over the last 2 years and now I can safely say there is no longer a need for complex tweaking and number adjustments!
This is our old "ship in ocean " sample scene included in the package, but simulated with the new FLIP based core, you can see the difference with the old simulation that uses the grid based core vimeo.com/76747435
Part 1 on how to set up a Backburner renderfarm for 3DS Max or Maya on Amazon Web Service's Elastic Computing.
It has been almost a year since I made these videos. As with any technology, some aspects of Amazon's EC2 set-ups may have changed since then. Use these videos as a guide but be sure to double check with Amazon's documentation if you run into any problems. I will not really be available to answer specific troubleshooting problems.