Yeah, they're segregated.
To make the best arch possible, I really had to structurally engineer those things. See, some of the clips have relatively weak silver parts that can't hold up the rest of the arch. The stronger ones have to be near the base to support the weight of the structure. The weaker ones always go at the end. I've gotten it up to 7 in my glory-days.
We in the south call those alligator clips, I don't know why...I always thought that was what a roach clip was called. I really like post it notes too Ness, and my faxed stamp, oh and dry erase markers. I love the way they smell!!