TCKline double adjustables

Just installed them with 600fr/700rr springs. So far, I've only had them on full soft for rebound and compression. A little rougher on the street but still very tolerable. But who gives a crap about street driving in this forum so here's my question.

What's a good starting point? Full soft? In the middle? Full hard (that's what she said)?

Or is there some known good starting point for a car that is at its stock weight (~3300 lbs w/o driver) with probably a little more front weight bias than stock?