I get the best results from mine by filling the basket to the top once tamped,and grinding fine enough the I really have to apply ALOT of pressure on the lever to get a fast drip from the group handle, I load the handle then pull down until I get a few drips coming out then I slowly lift to refill the chamber and push down to finish the shot, with the grind fine enough that I really have to push down hard gives me a sweet thick bodied shot with lots of crema, If I grind a bit coarser so as I don't need to apply so much pressure , I find the shots are a bit thin and lacking the sweetness, but that's just me.