+1 to both OE and Grmski.
I just bug them in broken up a bit, racking using a young auto-syphon so it tends to sit above the trub and filters the Hops out, beers have come out clear.
If you use a muslin bag, sterlise some marbles which will make the bag sink, some people leave them on top to float some wieght the bag down, matter of preference really.
Planning: Amarrilo vs Amarillo late experiment
Fermenting: Dead Phoney
Drinking: EKG Pale, Fuggles Pale, Citra Pale, Zythos Pale, Chili Choc stout, Dead phoney