Are you part mole or something? Do those look like regular flickers of flame?
Check your eyes...
When Sanji activated it, you could tell it looks a little different - even though i wished Oda did a bigger change, which he fixed it Elbaf. BUT! His Collier coup looks completely like his normal DJ flames, no lightning. Based on the Collier coup panel and the others ones i mentioned and posted, if we didn't know it was a new Jambe, we wouldn't have guest it was a new PU, because it looks like a normal DJ. Even in the panels when he is comboing Queen, they looked like normal flames.
Sometimes the lightning is there, sometimes it isn't...
Then, when he used Ifrit Jambe HM, again, no lightning and it looks like his normal DJ.
Oda has been inconsistent with IJ right from the beginning and stil is.
Now, i would stil wait, because maybe it was in fact his normal DJ that he used against Kilingham.