One of them must be Smart Parts Thread aka Ion thread for it to fit the impulse. Another must be Spyder and the third which you've said is autococker doesn't look like AC to me but it is hard to tell from photos.
Im going npf on the 21st if any one is going to b there I can bring along for them to take a look at and confirm what ive got or if any one lives close to Atherstone Warwickshire and willing to meet can also do that