how do they have aluminum seismics already?

after just ordering a chicken wing i am planning on setting it up with a rtx with a slight positive wedge and a yellow stim in front. The rear gets a rts offset with a steep negative wedge and a green stim. of course with 80a avalons. hopefully to much tweaking won't be needed, but who knows, i have...

in desperate need of an offset rts. by geezerx preferably.

Chris