Parx Casino Pai Gow Poker Pair Splitting rule

At Parx casino in Bensalem PA the house will always split the low-low, low-medium, medium-medium, and high-low two pair, unless holding an ace. The king is not ever considered in the decision to split. How does this effect the house edge?

Probably very little; only a gaming mathematician running a simulation would give a definetive answer.
Most house ways almost always split low-medium and better two pairs.
Only the low-low is always kept together as a more standard play. Splitting low-low would be more volitile, now beating high-card pai gow hands but now also losing to better two pairs split, etc.
However, for commission-based Pai Gow games it is better to win three and lose three in a round, than push six hands, because you get three commission payments for the same net result.

Quote: Paigowdan

However, for commission-based Pai Gow games it is better to win three and lose three in a round, than push six hands, because you get three commission payments for the same net result.

Hmmm....

I never thought of that. Makes sense.

For what it's worth, a pit boss once told me that their house way is NOT designed to win most often, but to lose least often. That's a very subtle difference, but interesting wording. I forget where that was.

At the place I work, we don't even deal with middle pairs. We have 2-6 as low and 7-A as high. Always split high pairs, and split high/low and low/low unless Ace in hand. I also agree that it's not maximizing the percentages, but I feel it's more a dumbed-down rule set because the house is afraid the staff won't be able to keep track of more rules.