I would say that when it comes to computers, it is Sandeep hands down. But, after ~ 3,000 emails with Rob, there are few that can touch him. He eats, breathes and sleeps DNS. Let's put it this way. His Ethernet fluke meter costs over $35,000. He did tell me he had a hard time deciding between the fluke meter and a case of PBR. I am guessing that is what his cost is.
We have so many questions on here about this and that being slow, etc. Sure, you can try with trial and error, but imagine using that meter and finding out the issue in minutes.