Since I can't cold crash in my walk-in cooler without needing a "go fund me" page to pay for the electric bill, I dry hop after primary fermentation is complete. I have tried it in the conical but still get a lot of hop residue clogging up my in-line screen when I try to keg out of the primary with more than a couple ounces of pellets.
I went back to dry hopping for 5 days in a carboy "aka a Bright tank" at room temperature and use a stainless steel racking cane to keg out of there. if I suspend the cane about 3/4 inch above the bottom of the carboy, I can reduce the amount of hop residue getting into the in-line screen. I also get a lot more of the suspended yeast to drop out giving me a brighter finished beer Yes, there is some added danger of O2 pickup but I purge the carboys with CO2 before filling them from the primary to minimize it as much s possible.
One of these days I will MacGyver a glycol chiller to cold crash my beers in the primary to do what Denny does.