Loss cap is ok to prevent a major TILT steamfest(I've seen people leave the table up a measly $5 and then proceed to reload 3 times on the losing days).Set a win cap if you find your focus wavering/or game gets bad.Beware of people looking to double through you when you get to be 150BB deep or more(as they know you are more likely to reraise/push because you have them covered).