Interesting Pair Michael, great capturing again

The two Galaxies, are they totally separate or actually colliding ? They look seperate to me, no hot spots in the collision areas either that is obvious ?
I read another web page, some guy thinks he can detect an effect of warping in the arms of 2207 at collision area, can quite see it myself, could be an older Image & new evidence has come to the fore ?
Great Subject and Image Mike