Hopefully without giving the whole article away, he played with geometry. As I’ve posted many a time before (sorry to be a bore) my Prophet is running a 190×44 shock (originally a 190×50 Swinger 4-way with stroke reduced by TF), but teamed with 130mm 36s for a short travel, 4X feel, the BB is way too low in the FR position, but it all works out nicely in the XC one (pretty much the same as a std Prophet in the FR posi). Took it to the Kona Mash Up at Afan this weekend and it was really good (but I reckon a standard Prophet would have been just as good). I don’t think its worth the hassle to be honest, the only reason I did it is the muppet I bought the frame from had fitted a 200x57mm Roco air shock with a blown rebound and I had the 190×50 Swinger spare. The tyre scuff on the seat tube showing clearly that a 170mm travel Prophet is a no no!
What’s your reason for wanting to try a short shock?