I'd be interested to hear how you manage with these as I find that to make them look convincing with the batteries they support you need a limber per gun and at least 4 horses per limber. On top of which you should have say one caisson per battery.
Now this looks great but takes up a large amount of space on the tabletop making it, for example, quite an obstacle for you troops to march around and offering a big target for flank attacks!
So as a compromise I wonder whether whilst limbered I should halve the number of limbers so that a 4 gun battery is represented by 2 limbers, 2 guns and a caisson but when deployed 4 guns are on table with a single limber and caisson behind both at right-angles to the guns.
Reckon I'll try this tomorrow but good to hear what others do.
Cheers,
Paul