I personally have gone 720 feet deep with 800ft of line. only brought up 20 shrimp between two pots i believe, but they were monsters. Usually i stay around 550 but go shallow to about 400+. Never gone any shollower. Supposedly there are black tigers from real shallow to a couple hundred feet. Plus 5 different species of shrimp total in Whittier. I have only cought the two common ones as far as I know. Spotted and stripped. The biggest on average were 8 tails to a pound. Lots of others like 12 to 15 per pound. Almost there. Been buying new gear and getting ready.