The herbalAire has worked fine for me. You'll always get the most vapor in your first bag, no matter how much you load.

The part of the high you're missing with vapor, vs. smoke, is mostly the toxic by-products of smoke. Everyone thinks the smoke 'high' is just cannabis. It's not. It's also carbon monoxide, benzene, hydrogen cyanide, toluene, etc. If you really want to include the toxic effects in your high, you'll need to smoke.