Harry, my LX7 should be here shortly and I would be happy to run any test you want.
If memory serves from the review, the aperture ring only works in A mode and M mode. So I am assuming that in M mode you can use the ring for aperture and the rear dial for shutter.
|Nowhere by Nanard 92|
from The Illusion of Depth and Distance
|Green Tomato by lim yau tong|
from Growing Fruit