If you're the first one to enter the pot, you should ALWAYS come in with a raise. You need to show strength. With suited connectors, you actually want to be in better position than you were to get the odds to justify playing the hand, but, if you're going to play it the way you're playing it, come in raising, give the BB a chance to reraise, then you can decide if you want to continue with your hand. Best case is that you buy the button and can take advantage of position throughout the hand. Limping in does not help you get information as to where you hands stands in comparison with the other hands at the table.