Your concerns are accurate but any investment by supporters would seek lefgal protection to see the sums invested retained within LFC for LFC purposes.
FSG would get the benefit of the retention of these sums increasing the value of the Club.
In that case I think FSG will pass.
The proposal seems too one sided, you expect FSG to gain NOTHING out of giving up 10% of their commodity?
Basically a 10% reduction in build/renovation costs (if we rebuild Anfield, probably less if we move) for what? loss of 10% profit when they come to sell, a pain in the arse at board level (bad choice of words, sorry) and a large group of shareholders providing nothing financial to the club or FSG for the remainder of their tenure. (unless you're going to guarentee that the shareholders will renew their stake every year or something)
It makes more sense to me to pass on the offer, stump up the £30m (or whatever) themselves and retain all of the club themselves to maximise future profits.
The way I see it is for FSG to break even and pass on this deal they'd need to sell the club, one day, for more than £570m;
Initial purchase price = £270m (so 10% of that, which they'd lose out on in profits if the fan scheme went ahead) = £27m
Revamp/Stanley park cost = £300m (so 10% of that, which is the money that the fan scheme would provide) = £30M
£57m x 10 (to get the 100% ownership value) = £570m
Thanks for answering though Graham, your efforts (even if I don't agree, or cannot see the woods for the trees) are always appreciated.