Thanks, Klondiker! That sounds a bit like my Cat Bearcat 10-whatevers, they're crazy clacky and I need to pay a lot of attention to rubbers and stuff to keep the skis from pointing straight up in the air.
I like the cat skis, but they require a lot more tinkering to work than what you mentioned with the Polaris skis. I might try those. To make the Cat skis work, I ended up running a cable to the little tab on the back of the pogo as a limiter - the tip can go "that far" up.
The Cat skis are also REALLY flexible. I found that my carbides are gone, the Cat runners are ~3mm steel plate with wear bars and carbides attached - both are worn smooth, one was dangerously close to becoming a two-piece runner. I welded a 12" length of 1/4" square steel rod to them last night, and I'm thinking that'll help a bit in terms of tips pointing skyward - I don't remember the runners being flexy when new, but once they're worn smooth, they're REALLY floppy.
Not anymore - they're pretty stiff now.
Anyway, thanks again!
Iain