[benwood]

It's not possible to find a rule of thumb for estimating your chances in stud as it is in holdem.Stud numbers vary so much from hand to hand on the different streets because the number of cards exposed varies from hand to hand.One thing you can do is compute win percentages on systems like 2 dimes until your estimates begin to get more accurate.Poker probe contains a game where you can input hands & guess what your winning chances are & compare with the actual numbers.Using this will improve your ability of evaluating your chance of drawing out &/or winning.