It kind of seems like it's more of a comparison of the included stems rather than the units themselves.
I'm also hoping the whole "hard draw" of the Solo thing is being exaggerated. Has there been any improvement with the 2015 models?
I agree, folks confuse stems for the units they're plugged into sometimes. The stems interchange, using the same stem on Solo is 'identical' to that stem on Air. The units are basically the same.
Yes, restriction was removed (basically eliminating the 'advantage' of PVHES IMO) but that's not necessarily an advantage. Ever wonder why they made it so restricted to start with? They're not stupid you know......
It's really a false perception, you don't get any more vapor per minute......that's set by the heat provided to the load, not how much extra cold air is drawn in. It makes 'hitting it hard and fast' but the hits are thinner (yes, I know I'm about to get hit with a bunch of negative response but that's what the rules of science say happens). Hits are easier but thinner. Drawing more cold air into the load simply 'steals' heat that would otherwise make vapor. Hit it hard enough and vapor drops to nearly zero.
With that change we also got 'use while charging', IMO a poor exchange. True PA has some real advantage. If you're lucky enough to find an 'old style' (used) I'd jump on it, you can always buy a PVHES to 'correct' the restriction if you want but the new style is harder on the battery, and can lead to earlier failure....much earlier for those who 'keep it plugged in all the time, so it's always ready to go'. I'm sure you know laptops and cell phones that now have very short battery life from this? Simply storing it at 100% will kill the battery early even if you never use it.
OF