I can't see why this wouldn't work if no new bond holders are allowed to join. I'm not an expert on your local law though. I think I know the issue your having and as long as money changes hands for new bonds there shouldn't be an issue. Capping purchases at a proportional amount to ownership May be an issue but bond holders could hv a hand shake agreement to only purchase their fair share
There are multiple issues, local and federal. The main issue is specifically pertaining to variable payout though. I'm not a lawyer so I'm waiting for my legal rep to put it all in legal terminology before laying out there.
Can you issue a 'change of bond terms' that each bondholder must accept? Such as
Old terms:
100MH/s per bond
New terms:
1.5 GH/s per bond (depending on total hardware active at the time of course with some safety cushion)
So, once a bondholder accepts the change of terms via signed message, they can begin receiving the benefit of the new hardware.
I'm getting the feeling that it is the specification of 100MH/s in the original bond agreement that is screwing us over.