There are many reasons i run S/ST not S/G, but the tree is not one of them. This year we plan on running S/C as well. My main reason for S/ST is I like the people, most like me are not trying to make a living racing, rather just looking for a competitive place to race and have fun doing it. Also I prefer to not have to change my perspective every race, meaning in S/G I will be chasing some and being chased by others. For the most part in S/ST I dont have to watch anyones fenders coming up on me with a couple of exceptions. Besides I cannot run S/G as I dont have the mandated toter and stacker that must be required by rulebook as everyoine has them