I own a Manfrotto 190CXPRO4, which I mainly wanted for its size and weight. I owned a Markins Q3 with the older style thumb releases. I've just sold this as I really wanted to get a quick release style lever top plate.
My dilema is. Should I stick with the Q3 or upgrade to the Q10? My lenses are all pretty small with the largest being the Canon 200mm F2.8. Although I would like to get a 100-400 at some point.