I'll double check but off the top of my head I think the survival pros are foldable and the twister is a wire bead. None of them are very worn at all. The twister was only used on the front for a few rides. The survival pros were also only used on a few rides. If I have time this evening I will try to get some photos.
Sorry for the delay. Here are some pics of the tires. All are used but still in great shape.
One of the survivals is dirtier than the other but they are both the same age and in about the same condition.