Just retested this with barrels as per your PM to me.
Barrels by default set in the editor as Dynamic objects (Green highlight). Need to press the Y key to make static (red hightlight).
I placed 4 dynamic barrels are different type into the editor, then placed a new barrel, set it to static in the middle of them.
Ran test game.
Results:
In real time lighting all the barrels go thru there LOD changes as you walk towards them and back away from them.
Performed an F4 light mapping.
Results:
As i walk towards the barrels all of the surrounding dynamic barrels went thru there LOD changes as I walked towards them and back away. The barrel set in the middle of the (static), stayed in its baked form and did not switch between LOD models.
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s), 8gb RAM, Nvidia gtx660, Windows 7 Pro 64bit, Screen resolution 1680 x 1050.