I just had a bad experience with commando pellets into the fermentor. I'm just getting back to homebrewing after a 20 year retirement and all my equipment is new, so I'm sort of a beginner, sort of not. I put 4 ounces of pellets into my Spike conical. After 3 days decided to closed pressure transfer to keg and hop pieces clogged the works - I think in the beer line or maybe dip tube going into the keg. I don't have cooling coils so I can't cold crash in the conical. Maybe if I had waited longer, more hop pieces would have settled, but I didn't want them in there too long. I think this would be less of an issues if you are racking, like was posted above. I drew about 1/2 a pint off the keg 24 hours later and there were a few hop pieces but all seems fine now. But I did lose some beer in the process when things got stuck.
Trying a bag next time.