Re: Tall Hookah's
How tall is tall? Something like a 32" hookah shouldn't be a problem. If you have one of those ridiculous MZs that are so tall they have two coal trays, you are going to probably need more heat to keep the smoke thick by the time it makes its way down.
PS... If you've only smoked "table-top" hookah before, you're probably adjusting to bowl size more than hookah size. My Razo or Expresso will smoke well with two coals because of the bowl size. When I smoke my MZ or Syrian pipes, I need 3-4 coals for the larger bowls and better air flow.