It has nothing to do with LCCT, It's all AA punya barang, should be shame on AA. Give cheapskate 7kg hand luggage some more what to behave cheapskate at the departure hall entrance.  I have seen many unaware passengers got turned away and paid RM30 to check in the luggages.  I'd prefer travel domestic flight without luggage check in ( no need to wait for luggage upon arrival) but I find it hard to comply with 7kg ruling even just for 3 days 2 nights trip. Fireflyz offer better value for money for its free 5kg hand carry + 20kg check-in.