This is a great discussion!!! I've been trying to figure how I missed this 'time delay' effect. I think I set myself up. I usually have several strains 'open' and more available but not in routine use. Usually I have a 'new strain' in the 'open' group as well for eventual evaluation. Bad experiment since that's not standardized, not a good place to collect data even casually?
And I made it even worse by typically loading several Air stems (sometimes Solo, though more often not) and capping them (both ends) for use later. I typically don't really know the strain or how long it's been loaded even. That I think masked the effect, perhaps I just took to letting Air 'soak a bit' without thinking about it.
Be a fun thing to test in an "A/B Test". That is with similarly loaded Air in one hand and Solo in the other.......
Alas, so much to do, so little time.
I say this also. I use short stem on Solo, but long stem on Air.
Yet another sin, to which I freely confess. I too am a chronic 'stem swapper'. Those long ones fall out of your pocket, the capped short ones let you button the pocket you know. But Solo has much more attractive battery life and I find the shape easier to hold onto (that is I drop Solo less.....) in the casual way I usually vape with it. Add to that the nuisance of being color blind and unable to 'read' the battery on Air (I count sessions) against the 'no question' steps Solo makes it to the garden more often than Air (which you'd think wouldn't happen?).
When inside and fixed there's more choices, new stuff to play with. But outside, I take an old friend....which means a Solo and a short stem or two more often than not. It's very rainy now (ding, dong, the drought is dead.....), but Spring with lots of new growth can't be far off. Many of the plants are 'coming back' already. Some, sadly, are gone. But I think it will be grand this year, and I plan to be there, supervising, Solo in hand, stems in pocket. Tough dudy, but a guy's gotta keep busy you know.
Regards to all.
OF