I’ve used cheap 1kg bags from amazon in the past. Ones that sell well. Anyone that can visit a fresh roaster may usually be able to get some or maybe just pay postage. Have to ask to find out.
Solo / DF64 was a disaster for me for other reasons. Can be improved but not a cat in hells chances with some beans I use regularly.
Rob666 Purely empirically I reckon my Niche is still getting better and less clumpy. It must have had at least 30kg through it.
What beans? I’m fond of 2nd crack monsooned malibar. Currently I’m trying directly into the portafilter having used the can for a long time. When I tap the grinds down via the portafilter the grinds sort of facture indicating how sticky they are yet no clumps directly out of the grinder. None on any bean I have used in it. In the can there may be the odd static clump - maybe Shake the can side to side which I do anyway to level the grinds and they break up. Gentle shake as well. Not worth worrying about and stirring grinds like that has some odd effects.
There was more static initially when I started using it - grind sticking well up inside the can. I buy in 750g or 1kg packs. Some static went while I found that banging the cup down wasn’t a good way to get them to fall off. It messed up my brewing. Later that stopped happening. How many packs total - pass but not many. Taste corrected itself markedly in the same period. Probably speeded up as all at espresso levels.
I didn’t try running the burrs in on Niche as no stated on to off time. A commercial grinder will get too hot if run for too long grinding loads all at once or as fast as possible in batches, That was noticeable on a Solo and a Mazzer mini.