Kirby brushroll question

[keldrin]

So, I have a Kirby Sentria 2. The brushroll was damaged when I got it.
I already had a Kirby G4 brand new roller. However, the magnet that powers the led light on the nozzle is on the opposite side.
Is there a reason I shouldn't pull the brushroll end caps off and switch their places so the brushroll installs with the magnet on the correct side to power the LED light? Or is it better to just not worry about the light?

 

[keldrin]

Also, I have a bit of a fear of not getting both sides of the roller on the same setting. So, I used 3 different color finger nail polisher to paint the 3 install settings to make it easier to reinstall the brush roller correctly. (I was having to use reading glasses to see the numbers to reinstall the brushroll)
Anyone else do this?