100% copper everything

[Skullz]

The difference is negligible for an extremely short run with copper vs a long run of ofc wire 20ft long.

Copper will oxidize and discolor over time whereas aluminum will not, and unless you treat the copper with a coating of clear coat paint it will change it's color.

EDIT: I guess my point is that for such an extremely short run from the wire to what ever your connecting is negligible in performance for the extreme cost of the copper.

[MACnonsence6]

kinda makes sence looking at the huge difference in price between the reducers and duel inputs in copper vs aluminum. and as far as bolts if i couldnt find them i was gonna see about having them made. didnt look into bolts much before i posted this

[Casket]

You can get copper bolts on ebay, quite pricey indeed. http://www.ebay.com/sch/i.html_trksid=p2050601.m570.l1313.TR7.TRC0.A0.Xcopper+bolts&_nkw=copper+bolts&_sacat=0&_from=R40

Aluminum doesn't tarnish, but does develop an oxide layer over time. You just can't see it.