Poops allover my theory about the weight distribution then...
I've seen several builds using LST shocks, though alot of thpse people are now using the hpi bigbores, or baja shocks even- smaller diameter makes life easier when mounting them, yet still gives good performance; the mod is probably just a bit of clearance work on the stock towers as the flms have a recessed area for the mounts to.. mount.
After a bit of digging, it seems the manual was posted on the old FLM.com website, but that is now gone and replaced with the .net site- no manuals that I can see but it would be worth emailing them probably still.
I do like Linc's chassis alot though, but it does require alot of custom work vs just bolting together parts as such.