Sorry Phil, no experience of those,
don't know of anybody using one either
Used WP/WhitePower, Ohlins, Technoflex, Proflex, Hagon, and of course original equipment Kayaba, Showa etc.
No luck with sag settings and damping settings then? might need different rate spring (and if possible damping revalve if adjusters not sufficient) might save you having to fork out for complete shock, KTech supply a lot of springs, MH Racing might have something, KAIS was up your way, also Maxton, although they tend to build complete shocks up. What make of shock is it? rebuildable? problem with linkage rates? different length rods needed?