BioMax
+1y
The reason I bring up things like roll-steer on a simple build is to make aware the effects that a design change makes. If the builder/designer is aware that it does make a difference, he/she my think a little longer or at least make a more informed decision.
As for the more horsepower and design #1 I would lean towards #2 still and brace the frame up. The more horsepower the more rearend support needed. It's not a must do, but most track cars I've seen try to stay wide on the rear end.
There is no way to eliminate roll-steer! It is here to stay. What we do with it is the important part. There is another thread I have been following (my 4-link tried to kill me) and the system was, unintentionally built with severe roll-understeer. That makes for a scary ride.
You can change the roll-steer effects by pointing the bars (from a top view) in or out (like you asked) but it can not be eliminated. There is a link design called the Satchell link that does a good job of mellowing out the effects, but is a little unorthodox. Most would not understand and would make fun. (Just like sleeve bags I guess.)
Good question Matt thanks...Max (from Bio, shhh)