Ok...here is a very quick summary of what happened.
Adam always liked Fender Basses, both Precision and Jazz basses.
With very rare exceptions he didn't use anything else live until the Elevation tour.
The reason behind this is very simple:
The studio got flooded and most of his vintage Fender gear was destroyed.
Because there was no time to shop for vintage gear he switched to Lakland basses.
The models he used have been "copies" of 60s Fender Precision and Jazz basses. I still think that these basses were one of the best he ever had and I personally think that new Lakland basses definately sound more similiar to vintage Fender gear than current Fender basses do
After the Elevation tour he had time to shop for vintage Fender gear again, which he used for the Vertigo tour.
Then suddenly he enjoyed to experiment a bit more in the studio on the NLOTH sessions and he especially seemed to like the Warwick Stryker.
He approached Warwick and they offered him a custom model.
He wanted to have a Fender copy, but Warwick denied that saying that if he wanted that, he should talk to Fender and they can do better.
As he was liking the Warwick Stryker so much, he wanted to keep that shape, but reverse it. The result of this was the first Adam Clayton signature bass called "Reverso" (still sounding exactly like a Fender precision but with 3 times the cost
).
He used several models of this bass with all kind of variations during the 360 tour, together with some Fender vintage basses and some Gibson basses.
But the star of this tour was still a golden, sparkle Fender precision bass (that later got a purple brother).
And suddenly Fender decided to make an Adam Clayton Signature Precision Bass in gold sparkle.
This was a limited edition and has been discontinued.
Suddenly Warwick came and gave Adam some custom made "Streamer CV" models in gold (because he likes shiney stuff). He seemed to like that basses very much and even used them on SOI and a bunch of promo TV shows.
Out of nowhere suddenly came Fender again and wanted to do another Signature Bass. This time it was a Jazz Bass. So we got the Adam Clayton Signature Jazz Bass in Sherwould Green that he also used on the album and is using currently as one of his main basses on the I&E tour.
But as 3 signature basses was just not enough he approached Warwick again. He had changed his mind about his own Warwick signature "Reverso" and wanted something more handy to jump around on stage.
So the "Reverso" was discontinued and the new shiney, white/black Adam Clayton Signature Streamer was born, which was based on the golden models he liked so much. This is his second main bass he uses now on the I&E tour.
So he completely dropped the signature precision and the signature Reverso. They have not been used for a single song during this tour.
For whatever reason he got back to a Warwick Stryker for WOWY.
But other than that it is the 2 new signature models he uses for the whole show now.
So to sum it up there are a bunch of signature models that you can/could buy:
Warwick Adam Clayton Reverso Custom Shop (discontinued)
color: nature
price: $ 6000+
Warwick Adam Clayton Reverso Artist series (discontinued)
color: gold / sunburst
price: started at $1800, went down to $800 in the end
Fender Adam Clayton Precision Bass Custom Model (discontinued)
color: gold sparkle
price: $ 3500+
Fender Adam Clayton Jazz Bass Artist series
color: sherwood green
price: $ 1800+
Warwick Adam Clayton Streamer CV Custom Model
color: white / black
price: $ 3500+
Warwick Adam Clayton Streamer CV Artist series
color: white / black
price: $ 850+