Limping should not be an option unless your getting the pot
odds to limp behind, the only way your scenario works is if your against a very agressive table, but to assume your ahead when oop is silly, if people are aware that you like them to do the betting for you, they will just slow down when you limp in, and raise when they think they are ahead, your then giving people the perfect odds to outdraw you on most boards, the fishes usually call, not bet, so your left prety much only making money from the type of opponent that trys to outplay you on every street,
I will agree that limping is not always weakness, and those are your targets and if you can target them you can make money from them, but being a good player will make you aware of these types of players, and when to take on this tactic, but more often then not, raising is the right thing to do, otherwise your giving people the correct odds to draw against you and your hardly winning anything when you get to showdown