i group my player into the following catagories
1. squares...........lose consistently
2. educated gamblers........these are gamblers that use money-management and are fairly disciplined, they know the value of shopping for the right number, middlers and scalpers fall into this catagory, ect.. they are capable of showing a profit.
3. sharps or wiseguys..........some might disagree with me on this but the majority of my sharps dont handicapp games they use key information to make their selections, using money management and discipline they shop for the right number to get down taking advantage of books soft on the number, they can be very tough to beat..