I used the "seems about right" spec when I tightened them up. I knew it was a pretty low spec so I didn't torque them very hard. But, since I am planning on my next Pan drop and Filter change soon, I figured I would try to do it the "right" way this time around.
The last time, I didn't prepare to have to torque the bolts and I didn't have a torque wrench around that was made for that torque range. This time, I will.