A lot depends on the respect your c-bets have been getting, if its been call//fold then I raise both (and worse) in all positions. If players are calling down with weak kickers then again I raise both in any position, the times your up against AK/AQ or a paired low kicker will hurt but most of the time you can isolate and make money off K10/KJ Axs etc.

Smarter/tighter opponents require more caution and I want to see a cheap flop and the action before commiting chips, if players are limping AK/AQ in EP then you need to be extra carefull about raising in LP. Thats not to say don't raise, if their that passive then they need to hit to stay in the hand, try to take it own with a c-bet, just dont get too attached to TPGK.

Working out your opponents limping, calling and raising requirements are the key to playing these hands.

Its probably a leak but I don't think I've ever open folded AJ or KQ.