Coffee Appreciation

How many notches back from all-the-way-tight do people have their Porlex grinders set up at? I ground some Monmouth Guatemalan decaff beans on the finest setting and the flow was a bit shit so will probably need to ease off a few clicks..

For this exact combo, I had to tighten from 3 clicks to 2 fot the de-caff. The beans seemed a little harder, and gushed a bit with my usual setting. Note that you can move between the clicks slightly too, and I think that position will be maintained.

I currently have the de-caff, espresso blend, Colombian Cafe' de Sandona', and Ethiopian Guji Gorbiche. I need to drink more of the latter two to get a clearer idea of what's going on. The Ethiopian is rich, and has a bright freshness to it. I need to drink more to get the right adjective.

Does anyone here have a rough duration they wait until after the brew-ready lamp has come on again before activating the pump on a Gaggia Classic?