When 4WD Cars have an option of a Torque Split; I believe they want to be handle like FR car. So, I 'shortcut' to 10:90 straight away; just to make sure one of the side must have MOST of Torque. To my experience; it helps a lot in TT. (Of Coz; not always work with all cars)
I know what your saying, man, it does go smoother tuning that way.But, tuning a 4wd into an FR is what I call 'the easy way out'.
Not saying I won't do it, or haven't, especially if I have trouble on a 4wd only seasonal, I have whipped up something just to grab tbe gold, get my money, and run ^^
BUT, this to me is almost sacrilegious as far as tuning goes.
The 4wd, when closer to the 50/50 end, has this awesome jump, a 'plant+grip+zoom' right after the mid corner when your heading back into a straight, that FR cars can only dream of. To throw away an advantage such as this almost brings me to tears.
The issue however is getting rid of natural understeer and tire-hopping/slides that come with the 50/50 package. On some cars, you just can't do it, so you have to settle for a middle ground.
But one student to another, take my advice, start at the 50/50 end, and work backwards from there. If you manage to get the car to handle well at around 45/55, or 40/60, you will thank yourself by still retaining the 4wd 'plant' ability. Once you hit 30/70, you might as well just go get an FR car, because you pretty much just lost all advantage of having a drive on all 4 wheels.
I'm still working on the '96, as well as about 5 or 6 other projects, lol.
And the new seasonal races are a day away, and that will require my attention as well.
But I AM working on it.