Simon, Ive used the slider a fair bit in both the 140 and 180 size - they are great lures. They are also available in a tail weighted Hiramasa tune. The sinkers work really well in all conditions, whilst the floaters are a little difficult in chop, you really need to slow the action down if the water is a little rough.
They seem to have stood up to a few fair to middling kings over the years, bigger beasts mighte make a bit of a mess of them though.
Cheers PC