i use just a quick release plate on the monopod and mount the lens to it i can remove it in secounds then
imho ball heads are a pain they make things heavier and slower on a monopod
I have a Manfrotto 681B monopod with 234RC Tripod head, I have just purchase a Nikon 80-200mm lens to use with me D700 and was wondering if there is another tripod head i should be using on the monopod