Thanks Glenn!
That's exactly the info I was after.

Cindy

Glenn Ashmore wrote:
Spade experimented with cast steel back in 2001 and produced a limited
number of S80s between then and late 2002. The original idea was to
change over all the models but they found that fabrication cost were
higher than expected and after testing the performance was not improved
enough to make it cost effective. Also, mud clings to those ripples
making them harder to wash off.