i play in a similar home game. i tried that for a while, and everyone picked up on it.

they don't play terribly tight, but with a decent looking hand (any Ax, picture cards, suited connecters) they call.

then they hit something/anything on the flop, and draw out, when they have no business in the hand anyway.

so i've started limping more, and outplaying them after the flop. try to pump the pot with smaller callable bets.