Personally, I use the long bean scoop that I think came with the Rocky.
I put two full scoops of beans in my hopper for each double shot. I dont do singles.
I grind (IE: turn on rocky and get other things ready whilst it grinds into doser) and I dont load the PF until all grinding is done.
I have done the sweeper mod and also have removed the small steel plate
I then usually brush it out at the end of the day.
Hope that helps.