Manual Coffee Grinder

Hi there,
Using the Brua has really opened my eyes to the subtleties of the many variables involved in producing a great expresso.
So far I have only pulled a few exceptional shots, and many disposable ones!
If you can recommend any good websites or forums for "hand lever expresso making" that would be appreciated.
I have been able to position my cellphone to video the extractions and this is really helping understand where things are going right or wrong. For instance if I see holes in the basket without fluid extracting through them this tells me something is wrong - but is it that I need a coarser grind?, better distribution technique?, less tamping pressure?, longer pre-infusion? etc. Anyway, so far it's been a challenge with lots of tinkering and note taking but I'm enjoying the learning process. There's a real satisfaction in getting that perfect shot, and I plan to make it repeatable!
Thanks
Ben

I am genuinely impressed with this grinder. It looks fantastic on the coffee bar and feels so solid and high quality. Grinding for me has been smooth, easy, and quicker than expected. Most importantly it is extremely consistent which produces uniform coffee with minimal variability in grind size. I have a great electric grinder and I’ve been really surprised how often I opt for the manual over it. It was a GREAT buy, so thrilled with it. Highly highly recommend. Just one thing to add is if you plan to use it for filter coffee too then you may have to go beyond the 28 clicks mentioned in the instruction booklet. Newton is the best company with the best people so I’m always happy to give them my business, and I also never regret it. Go get this grinder.