jab-jab-teep-shuriken
just kidding.
My bread and butter combo is jab-cross (not a full cross, almost like a hanging feint) - rear RHK to lead leg. I use the returning cross as an arm crank (one of the few times I throw my arm for power). It works so well.
Note the trick is that the RHK is executed at the half beat. you can do it on the full if you wish, but it's not as effective. The cross can hit or not, but you don't twist fully into it. Just keep the eyes and hands busy while you send a bangkok boomerang to the lead leg.
Note that if you whip the cross down for power, you might get hit by a counter punch. It's one of the few times you are really vulnerable to that because your opponent could be in counterpunch mode. So turn the hips, lean a bit, and cover jaw with shoulder.