Well, for the rally specials I use SRF for sure. On tarmac i try to use only abs at 1 or 2, but if its a very powerful rear wheel driven car I don't hesitate to set TCS to any number required to stay on the tracks, and enable SRF too for that matter. For licenses only abs at 1.
And don't foget to set HIV to 0 at all times, else aids will be autoenabled.