When I correct shots form the Canon 100-400 IS, I find the chromatic aberration adjustment that I apply in Lightroom is not constant from shot to shot when the IS is turned on.
Now firstly, it's such a tiny aberration that most people wouldn't care.
Secondly the error is small, it changes the amount of correction but not the direction.
I check it at 100% on a 24" WXGA screen, because the images are going to an agency at full resolution.
At print size up to 8x12 I wouldn't bother.