Why a riser ball at all? What purpose is that serving? Looks to me like that just compounds any problems by creating un-necessary angles at the hitch. If you have dropped your hitch to it's lowest point, and you still feel that you are too high at the nose, and have a riser ball, isn't it logical to eliminate a couple of inches by putting the proper ball on the hitch? Just trying to figure out why that is your choice of ball?
Becky, Bob and Taylie & Bode
2009 Silverado 2500HD Duramax/Allison
2014 Heartland Sundance XLT 245RL