Evander Holyfield always says that when you throw your right hand, "leap" into the shot as to where your back foot will come off of the ground - I like the notion to some extent - get EVERYTHING you can behind your right hand - however, when it's thrown in a combination, just twist your back leg into it rather than coming off of the ground with it - make certain your hips, back & torso turn with it - bring the house - DO NOT turn your back leg with each right hand thrown however, when it's enveloped in a combination - in this case, only turn it once and leave it there until you finish throwing - then set it back down.