It's not just vertical lift:
The shock/ spring is attached to a triangular linkage which is attaches to the swingarm and the dog bones. The whole linkage assembly pivots, so changing the length of the dog bones changes the length of the lever arm acting on the linkage.
With shorter bones, the bike will sit HIGHER (the bike hangs from the dog bones). Happily for big dudes, the shorter lever arm means it takes MORE force to move the shock thru the same amount of travel - since you're reducing the mechanical advantage the dog bones have against the linkage.
LONGER bones will allow the bike to hang lower - closer to the ground - while also GAINING mechanical advantage against the shock linkage: the same amount of weight/ force will cause the shock/spring to deform MORE than the stock configuration.
I ran raising links on a KLR and a Vee (don't have them on Wee yet). I noticed a dramatic change in handling (for the better), but I don't know if it was an improved rake/trail, front-back tire weight distribution, wishful thinking, or the suspension voodoo working.
At any rate, it's one of the cheapest things you can try and it's easily reversible. If you try it and don't like it, I'll buy the links from you.
...unless I complete a DIY set between now and then.
Would love GW to stumble in here and comment on the accuracy of what I'm posting here.