So I figured I'd start a thread on this seeing as at least 8 other people in the UK must have them (based on The Grange's sales).
Overview
In case you've not been following, the Wolverine SMP (Single Moving Part) is a high pressure air based system designed to drop in to existing gearboxes. The nearest similar product is the Polarstar, but that requires you to buy a complete gearbox shell, which will either be for a V2, V3 or (I think) M249. One of the main selling points of the Wolverine is that you can drop it into any gearbox that takes a standard sized cylinder and you're good to go -