Sad to see this fail, but understandable that you don’t want to wait any longer 
I had to think about it, but now I’m sure that my first response doesn’t suffice.
I would really like to know why only roughly 25% of minting NSR holders supported this proposal.
Do they really want to rely solely on NuLagoon Tube? This is not exactly in favour of decentralization.
<rant>
NuLagoon Tube can be used whenever LP want to use it in difference to this proposal that requires to make deals. But it’s less convenient than doing an exchange with such a “T3 Trusted Custodian”. NuLagoon Tube requires that address pairs are registered and the funds need to be sent from a registered address.
If an LP wants to balance the funds, they need to be withdrawn to the registered address (BTC, NBT), sent from there (TubeIn), exchanged and sent to the associated (registered) address (TubeOut).
That is much less convenient than sending directly from the exchange to the deposit address of the trading partner (T3 Trusted Custodian) and receiving the exchanged funds directly on the exchange deposit address.
I don’t know whether this is related to a test phase, but the last NuLagoon Tube transaction took close to 12 hours to be processed.
Don’t get me wrong. My intention is not to bash NuLagoon Tube. I think it’s a great service, but in my opinion not exactly for the purpose of balancing funds used for liqidity provision.
So I want to know why this proposal is neither supported nor improved by feedback.
I’m asking in the light of the use of the Poloniex gateways (NBT entry; NBT exit). Each of them has been used more than once in the lat weeks. I thought them out for emergencies. We seem to have a lot of them.
This proposal of T3 custodianship is very well suited for being applied to each (automated) liquidity pool (ideally multiple times).
Each pool operator could think about applying for such a custodianship.
Each NSR holder should think about applying for such a custodianship.
How can we even imagine introducing additional products if we can barely manage to keep the balancing of NBT buy and sell side under control?
</rant>
What are the alternatives?