thanks for the info allthumbs
i checked the diamond bottlenecks but they don't do australia officialy
but i might be able to find one.
i couldnt see any mention of drop d
slides therebut the length of there slides is customisable when ordering, they mention the 50/50 in the news but its not on the main products list yet.
i may buy a heavy brass slide and cut it to size, if i do about what length should i go [for a stereotypical drop d slide]?
and what would i need to do to smoth the cut out