Hi Harmy, I am sure you are already well aware of this but I felt that I should mention it to you just in case. I recently watched Empire Strikes Back and I noticed that the lightsabers appear to have a ring effect surrounding them. I specifically noticed this beginning at 1:44:53.

I compared these scenes to other versions of ESB that I have and the ring is significantly more noticeable in your version. Anyway, sorry if this is old news. I just wanted to bring it to your attention in case.

Cheers.