I would be very interested in your thoughts as to "tuning" the junior, especially as you are teaming it with a Rocky.
I have an almost identical set up... but the junior semi-auto. *It has taken me some weeks and many kilograms off beans to get what I personally think is the perfect shot for my taste preferences.
Im not that technical when it comes to accessories (I don’t have scales or dosing gear etc…). *Ive simply got it down to following "ritual" by trial and error:
Machine warm up - at least 30 minutes prior. *Then followed up with a flush (maybe 50ml) just prior to the grind with the filter locked in.
Beans - I use the standard double basket. *So, as to ensure some consistency with the volume of beans, I’ve taken to using the plastic “scoop” that came with the machine. *I place approx 2 slightly heaped scoops of freshly roasted beans into the Rocky.
Grind – As the Rocky doesn’t have a grind indicator sticker showing the grinder setting (as I bought it new from a second’s distributor and I’m assuming they replaced the damaged hopper). *I’ve now got it "3 clicks” from the finest grinder setting possible.
Dose/Tamp – Dose (into the clean dry basket). *The dose amounts to a pile slightly heaped over rim of the basket… and when tamped, it’s just above the rib of the basket.
Extraction – It’s about 50ml in 25 seconds. *Crème seems to be fine and by all accounts looks and behaves like it should. *With a dry solid puck.
Espresso Taste – I’ve tried 3 or 4 different beans and settled on one supplier in the CBD in Sydney. *It’s almost a sweet creamy flavour that really does linger on the pallet for some time. *I’ve compared this to short blacks at plenty of cafes around Sydney and 9 times out of 10 it’s better than the best I’ve had.
Milk – from the first jug I tried – I produced micro foam immediately. *I canlt see how anyone couldn’t?
So, all in all… I am extremely happy with my new set up. *Yes I too was a SB owner, and still have plenty to learn. *The only problem I have now is that I consume 3 to 5 espresso per day on the week-end and maybe a morning flat white. *I’m literally a twitching ball of hypertension nowadays.