I've just looked at my original post, and although I've mentioned the 2 spare shocks I haven't mentioned their condition
One of the spare shocks is an earlier unit (1997). It all works fine, but the red rebound adjuster knob has broken off. The rebound can still be adjusted, and I have a spare adjuster knob to fit, but I have never got around to drilling out the existing snapped bolt and fitting the replacement.
The other shock is the same as the one currently fitted to the STS, but this one has a broken blue compression adjuster knob. Again, it works just fine and I have the replacement adjuster knob for it, but the snapped bolt will need to be drilled out first. You can't adjust the compression on this shock without fitting the replacement adjuster knob.
The shock fitted to the STS has both knobs present and works perfectly
I've got an 800lb spring too (as well as a 750lb and the 700lb currently fitted to the STS), so these should suit the vast majority of riders