Re: Best bowl for 1-2 people?
Vortex is good but I suggest picking up a small Egyptian clay bowl along with it. They are cheap and often have the lowest capacity of any bowl you are going to find while still smoking properly. That being said if you don't mind using a bit more tobacco the vortex is my go to bowl at this point.
And no the mod is not necessary but helps to remedy some the inherent problems with funnel style bowls.