Jeff;

You don't have a patent on tight cover hunting, and you've never hunted with a cold chamber, so saying that it would, absolutely, cost you game is a non-starter.

FWIW, wildswalker's son (14 year old) took a nice, fat spike at about 20 feet this morning, cold chamber, and having hunted with both of them in that area, it's THICK. Of course, the kid is a killin' SOB, and a sneaky bastid, so that probably tips the scales some...............