Alright so I was looking through some things and I became curious.
Hungry Ghost at level 5 allows you to regain Ki if you Crit or drop an opponent to 0 HP. Qinggong lets you at level 5 trade out High Jump for True Strike. Is there any way to chain those? I mean if you are hitting with some a pummeling style attack it says its one attack, which falls under True Strike.
No. True Strike specifies your next single attack roll. Pummeling style has you make all rolls separately, more then one attack roll.
Furthermore, pummeling style is worked out as one blow, but the feat specifies that each attack and damage roll is made individually, and they are resolved at their normal bonusses. Thus, feats which only benefit the to-hit or damage of your first attack in a full-attack (or flurry) do not apply to all your other attacks.