I hate to say this but I really dont know.
I got one kit in iceland used and it is and older kit from maby the late 80's to early 90's and I got the other kit on ebay and I think it is a little newer because of the lugs (which are difrent from the other kit)
but they both sound great.
Of course one day when Im rich and famous im going to get the same set up but it's going to be a
DW 