Nothing to be sorry about, Mark. I wasn't intending to go anywhere with the differences between a PHB and a Watts here.
Nelson - with most (but not all) stick axle suspensions used in drag racing, there is benefit to be had with a rear stabilizer bar. And for that activity, as stiff as you can find is as good a place as any to start. The reasoning involves putting as much spring + bar roll stiffness out back as possible, because that works to "re-plant" the RR tire that driveshaft torque is always trying to UNload. Since you probably don't want too much spring for other reasons, that leaves the rear bar as the better method for equalizing rear tire loading (and thereby maximizing total acceleration grip). Technically, it's all just a different kind of roll stiffness distribution tweaking, and it's more or less related to disconnecting or removing the front sta-bar on a drag car.
Norm