@kryton57 – Which grinder are you using, as some produce oodles of fines even at coarser settings? Blade grinders for example give both boulders and dust, loads of clogging. Not sure how you can get 9 minutes 🤔
I use the water straight off the boil to be honest, light roast coffees really need it.
Loads of V60 nonsense but I like these two. You can do ~700ml two pour batches with an 02 size V60. Up to 1l or so with a size 03.
James Hoffmann – bloom with twice coffee weight to water for 45 seconds, pour one about 60% of the water in by 1:30 and swirl, wait a bit and put in the remaining 40% by about 3:00. Final swirl and a total drawdown
Scott Rao – single pour with almost espresso fine – bloom 3x weight coffee wait ~45 seconds and then do a single pour and swirl. Can’t scale the volume easily.