So, I did the side by side test of my original TI Grasshopper DopeGun(TM) vs the new TI Hopper IO DopeGun(TM) through a j-hook. The IO blew the old man away. The original Grasshopper always requires a few priming hits/puffs to get going. The IO does not.
As for charging. The new charger has...
"Made in the USA", except for the batteries. I am not a rocket scientist, I'm a roofer. China screwed hopper labs like they screwed the rest of us
So at least 3 drain to dust loads.