I have been running a 8570 on hills here, it has been heating up hyd. oil and the light comes on then the engine heats some. So when Hillco put the side hill kit on do they put a bigger oil cooler on and a big pump to handel the leveling. I am sure it take more power for leveling, dose it have enough power for leveling, climing hills and thrashingIJ I was also wonder on the 9690 you demoed if it had reverse bars in itIJ Sinceraly, swtvid