The quingjong monk can grant the improved vital strike, to be activated as an immediate action. Does that mean I can use it in the same turn I make a full attack action. I know the feat says I make a single attack instead of taking any other attacks, but I'm wondering how the immediate action activation effects that, if at all.
It grants them the feat as an immediate action, then you have to use your standard action to make the attack.
The attack is not made as an immediate action.