I'm impressed by the good advice here! I especially agree with the tight set up, you dont want to create bending at the chute, with your reel to far away. I've had good results with dist. coax feeding off the bottom off the reel with the reel directly under the chute. The cable should travel unobstructed out of the chute to touch down on the first roller. With larger cable a slight angle is better. Caution if the coax is dry, consider lining your chute. Other great advice here;" planning your run."
All the best!