Help Identifying KO's

[spiderken17]

I recently bought an entire TF collection and have been able to identify whats what of the stuff i am selling and the stuff I am keeping, however these were included in the sale but the previous owner has moved overseas so I don't know where he got them. As a result I want to figure out if they are genuine or KO. I have done some research but a lot of the video's about KO's of these figures are quite old so I am sure there are better versions available now. I have also tried to compare them to my own collection which I know is genuine but I have not found it easy.
I am pretty sure Tigertrack is a KO as it comes with the extra hand parts (which I saw included in the video) but it also has a black outline around the headlights which the KO in the video did not have.
Better pics are available but I am hoping there is an easy way to id them.
Any help would be much appreciated, if I can't figure it out I will offload them cheap as KO's on Gumtree as I do not want anyone to think they are buying genuine TF's that turn out to be fake.