[Greg J]

I'm not a huge fan of Harmon's chapter in general, but that is beside the point here. There are several things that play in here, most notably relative position -- you want to be able face a hand that could potentially beat (like T ot J of that suit) you with cold calling if possible. Sometimes you can't. Even against good players (which we are probably not facing here given the preflop action) it very often correct just to take the equity edge on the flop and ram and jam a baby flush, as they will often be getting the odds to call down a single donk anyhow.