From the descrption of those corners I would say..
Clutch clutch clutch. Keep the r's up and use the heck out of the clutch to help control wheel spin. A slight slide free feeling is fast and on a rail is slow in corners like that. Keep your but off the side above the peg and against the side of the seat so you are not using your strength to fight outward gforce. Play with leaning your upper body in, out, forward back and slipping the clutch with the revs up. You will get to a point of slightly leaning your upper body around from striaght up nutral through the corner to help control traction and side bite and using your clutch a lot. Keep those elbows up, keep at it and it will get to where you don't ever think about it. Attack that xxxxx and make it your own.