I guess there are 2 schools of thought. With our Coyote XP's, we keep going up in cross to free the kart up in left handers. We push up between 50.5 and 51% on a road course. Some people will say that having really low cross puts a lot of weight on the LF which you can jack to unload the kart when you turn. From my experience, with the coyote sprint karts, you don't have to make the kart jack anymore than it already does. Running higher cross will keep that LR under control and help to insure the weight jacking isnt too aggressive. My biggest concern would be to try to keep the inside wheels on the track.
Usually with the Coke syrup, you take all the transfer out the kart because there is so much grip the kart will transfer anyways. You don't need much mechanical jacking. Even with LTO chassis, we roll all of the castor out and dump a ton of LS weight in to keep the RS from working too hard and getting tight. Once we get a balance we can fine tune with cross.
Keep in mind I am no genius, I have only run on the syrup once and did half decent for a nobody and a rookie. Been running the Coyote Sprint karts for my entire life. Let us know what your percentages are when you get a chance to scale. That will probably help us get you better info.