ok here is the deal. I am going to buy another Trimble S6. We have a few rangers that we run our R8, Leica TS, and other S6 with. I have an chance to get the new controller with Survey Controller rather than Survey Pro. Having three boxes with Survey Pro I am wondering how my S6 and R8 will run on Survey Controller. Will they be more responsive? Work smoother? Is it worth the gamble? Once the collector is bought no turning back.