Kill the Ox/Tiger

Introduction

The Kill the Ox/Tiger is a baccarat side bet that wins if the either of the following events happen:

Wins pay 30 to 1.

The Kill the Ox/Tiger is a side bet based on conventional baccarat rules, which I assume the reader is familiar with.
As stated in the introduction, the bet wins if either (1) the Player hand has a three-card total of six and either ties or loses or (2) The Banker has has a three-card total of seven and ties or loses.
Wins pay 30 to 1.

The bet is likely to be found with the Ox 6 and Tiger 7 side bets. The Tiger 7 also goes by the name Dragon 7.

The following table shows my analysis of the Ox 6 bet with eight decks. The bottom right cell shows a house edge of 13.76%.

Event	Pays	Combinations	Probability	Return
Kill the Ox	30	84,102,272,663,808	0.016826	0.504775
Kill the Tiger	30	54,956,551,870,464	0.010995	0.329845
All other	-1	4,859,339,450,969,090	0.972179	-0.972179
Total		4,998,398,275,503,360	1.000000	-0.137559