Jumping to army with control group hotkey

Hey all,

So I usually hop around the screen with hotkeys, but when I attempt to center the screen on my main army it often messes up. This is due to me adding newly produced units to the group, which aren't present at the main army's location yet. When I then doubletap the control group the screen centers in the middle of all those units, which is useless, as half the time this is on an empty space in the middle of the map. Is there a way to jump to the bulk of the control group, ignoring those 2 outlying units?

Thanks in advance!