Most I've seen are:
At least 4 turns left, stop at 1st number
Turn right, pass over 2nd num twice and stop on it the third time around
Turn left, pass 3d num once and stop on it the second time around
Turn right, stop on zero (or, until it won't go any further).Open.
This is how mine works as well. One other 'trick' I learned with mine ... actually go just a tad bit past the next number in your combination. If you stop the least bit short of the number, or what you think is 'right on it,' mine is not gonna' open!