So, I quoted myself 
, sorry.
My Hopper has arrived, and I now know how the Hopper fits
@Kfirrer s 3D printed case.
I now have a spare battery, herb container, and the Hopper all in the case, and they fit perfectly.
Real snug.
There's no lengthwise rattling at all, and the battery and herb container don't rattle at all.
There's a really tiny rattle from the Hopper if you shake it hard 'sideways', but it's REALLY minimal.
And the case gives every impression that it will be very durable, and offer great protection.
At this price point I'm very impressed.
Aesthetics could be improved, and I'd love a wooden 'dugout' styled case in a similar style.
I'm certain that that would cost more though, so for a budget solution this plastic model is great.
http://m.ebay.co.uk/itm/Grasshopper-vape-case-/282115782363?nav=SEARCH
I think that a dugout styled captive lid would even work in plastic.
Less chance to drop fiddly little lids when ' in the field '.
The grey I chose is a little 'institutional', but unobtrusive at least.
If I were to get another I think I'd go for the black.
I've only hit the Hopper about 6 times, but so far it seems to work as intended.
I just had a monster rip through water @5.
Harsh but huge, my D020-D was a little overwhelmed, I think I'm gonna have to dig out the WeedStar 'Double bubble' for this little beast @5.
Taste seems pretty good, but I think I prefer my Milaana by some margin for flavour.
First impression is that this is a very capable little vape, but somewhat hot/harsh at the temps that get you satisfying clouds (ok, very subjective, but still...).
I haven't noticed any heat at the rear of the vape at all, but I do find some care is needed to avoid the mouthpiece getting uncomfortably hot (looks to be do-able with a little practice though).
I'm going to give the Hopper a couple of weeks then re-assess.