Perhaps I should be asking this on one of the math sites rather than here, but I reckon cardplayers would know: when my wife and I play Skip-Bo and things aren't going her way, she claims that I "didn't shuffle the cards well (long) enough."

While it may be true that I only shuffled the cards a few times (rather than dozens), my assertion is that it doesn't really matter, as far as who has the advantage - we're both playing with the same "badly shuffled" cards, so it's an "even playing field."

Am I wrong? Is either player at a disadvantage with insufficienlty shuffled cards?

I am even tempted to not shuffle at all between game 1 and game 2 to see how that turns out.