M05 does turn more but to the point of instability without good gripping rear tires.

Your understeer is probably coming from your diff setting and springs. V2 uses softer springs on the front and stiffer springs on the back.

I would try the bonestock setup first and the car will tell you what you need to do next. The V2 is a very easy to drive balanced machine vs the M05. Not that the M05 is bad. It is fun to drive.