Hello back from MD!
I would recommend doing two things with your new Rocky. Finding the 0 point, and doing the teflon tape mod.
Both are simple. I found that putting some teflon tape around the top few threads gave me a little more control in my grind setting. The rocky is still a low end grinder in the grand scheme of all things coffee, but it can easily produce some great espresso when paired with Miss Silvia. I am still playing around with grind settings, and tamping strength, but a "bad" pour just means that i will be drinking a cappa

.
Lately i have been grinding finer, and not tamping quite as hard. I also feel that the ridgeless LM double basket i bought had a lot to do with my improved shots. I accidentally purchased the ridged basket, and had been using a substandard tamper. This had led me to consistancy problems, or at least more then i feel i should have been getting.
Now that you are getting a better grinder comes trying to find the right temperature.
-Donovan