Grinder and grounded bud???'s

Can anyone recommend a grinder in the hand cranked 3-4 chamber with screen or screens variety or something better or in par with said grinder?
Has anyone stored properly cured and ground up buds long term say 2-3 months.I am thinking it can be done with a proper vacuum or near vacuum seal in fridge or freezer.I do not want to spur silly debate just hard facts on proper method and success.
Has anyone experimented with ground up blends of 2 different or near same strains(ie 50/50 mix) in joint,bowl,vape,or joint?If so what was overall effect?

Thks for answer or answers.

Looks like Space Case or Sharptone.I tried a Sharp and liked the crank but the threads were kinda pita and on the cheap side.
From what I see grounds can be stored but air/moisture/light tight for a couple months.
I have to make my own blend.

i have owned 3 different brands of crank grinders including sharpstone and i have more beef with the crank grip than i do with the threading. the grip on the crank always breaks so i have to push it around with my thumb, and for that reason i will no longer purchase grinders with a crank. having the see-through window on top is very helpful, though. cheap threading is an issue, but my experience has always been that the crank fails before the threading.

as far as making "blends" it's something i do all the time, although i have never stored the ground stuff. when i make blends i do so more for flavor and less for effect, but the effect will always vary. i have a pineapple chunk cross right now that's just too fruity tasting for me, so i cut it with about 30% hashplant, which has more of an earthy taste to mellow the fruitiness. different ratios of stuff make different highs, and i like the variety.

If you vacuum seal it, i would imagine a few months would be fine to store the bud, much longer tho and I dunno how it will be affected


Personally just use standard 3 chamber hand grinders, no crank...turn the top...lol. The "Chromium Crusher" is one model in particular I have found quite effective at collecting keif.

Pretty much every time I smoke I blend it. I like to keep a bag of earthy stuff around to mix with my grows. Like Total Head, sometimes its too fruity and you need to mellow it out.

Thks.
So you peeps blend more for taste.That's cool.
Spacecase looks like the best grinder,if you are willing to shell out some dough.