I prefer sticking with the two outside lanes. For me there is already enough wrinkles...lol. However, I'm not hard over on sticking with just outside lanes, racing 4 at a time could actually help me. The only downside I see is that those with skills who can dial in close to the breakout time, their skills will count less.
Know doubt that racing 4 cars at a time will spice things up, however, what do we want the objective to be in this class? 1. Competition of skills to see who comes closest to breakout time? or, 2. Competition of more luck and less skill to make things less predictable?