Thanks a lot for the replies guys. I got a lot more information than I was expecting. I was just trying to understand if they were sort of stuck in their respective forms of racing. Didn’t know they made centered oval track karts since when I lived in NC and dirt tracking was the dominant form of karting I only saw offset chassis being used.
Appreciate the insight and we plan on going out in his modified GX390 sometime soon to compare to my TaG 2007 EVX with a 1st gen PRD Motor. Should be fun to compare the two and see how they feel on a track like Grange which has both left and right hand corners.