I like to have rear bound 1 click less than the rest for a rwd roadcar so it is slightly softer on the rear for less wheelspin. for example if I have 7 all round I will go 6 for damper bound on the rear. Its hard to explain but it works for me for circuit racing in conjunction with my diff tune I usually need no rear downforce and it still grips with no assists and ds3.
Just gotta trial a few things and see what works for you. I use the seasonals to tune many different cars, 3 races usually does it, I start with an estimate tune then for the second race I adjust if needed and for the last race i fine tune. driving feel and lap times are the best tuning tool.