So I finally got a chance to run some beans through the burrs for seasoning this evening. Got some quite revolting/ashy smelling dark roasted Brazilian (why would you dark roast Brazilian beans?!) beans from Asda fro £2 a bag. Bunged a couple of those through and whilst doing so adjusted the grind by eye/feel to an espresso grind.
First shot of Hasbean Christmas Espresso Blend gave a 22 second shot. Pretty damned close for a first guess! Looked and tasted good.
The next shot (with the grind a little finer) was a 26 second 26g cup (from 18.5g coffee)
The pour was very even band quite a bit darker than I have been getting with the Mini with this blend. Very sweet smooth viscous shot. The acidity seemed a bit lower than the shots I have been getting with this blend and the chocolate a bit more prominent.
I guess I should find time to do some back to back shots with the 2 grinders.
The grind from the F5 certainly has a fluffier look to it than the Mini's and does look very even in particle size. It also seems that the difference in grind seems less for a given movement of the adjuster but that could just be a better grind quality giving more forgiving shot.
On a sample of 2 shots I would say the F5 is a success so far. Hopefully I can play much more over Christmas and see for sure.