We plan to take our son to Florida next year, and currently our return AA flight connects us to LAX for a long layover then connecting to a CX flight.

My question is this. . . Can I check in my luggage from MCO to HKG all the way, and then ADD more luggage while in LAX (plan to go to Costco and stock up!) ie: check in two luggage from Florida straight to HKG, then add two more in LAX? Or will this cause TSA and/or CX to go nuts? Anyone has experience doing this?