Wow! Thanks for the extensive review @Skymirrh!
Some small things I'd like to add based on your remarks:
There were several reasons we moved away from the version 1.
Among them was the fact that an unreasonable number of them were, as you describe it, 'unlucky' and possibly defective, in that the lid was easily accidentally uncapped.
Additionally, as you mention, it is a very common bottle, and as customers having Queal out-and-about and talking about it is one of the main ways we get new customers, we wanted a shaker bottle that was a bit more unique and 'sexy'.
Version 2 was very divisive. Half the people loved it, the other half hated it.
For instance, some loved how large it was, whilst others complained that it was way too big.
In the same way, half the people were a big fan of the spring-mesh and mount, and the other half were not.
I personally like the size. I have giant hands but am still able to easily clean it.
I also really like the spring-mesh. In my opinion it mixes better, and it doesn't make as much noise as the whisker ball.
We're really happy with how version 3 came out so far.
There's always more improvements to implement though, and we're certainly not stopping our efforts to keep on innovating with the shaker. I think having the functionality of version 1 with the sexiness of version 3 is what we should be aiming for next!
Again, thanks a lot for the great write-up and feedback @Skymirrh!