I understand your concern but what I'm throwing to the community is something simple. Quark will always be quark, quill is quill. Even the codes are not linked up by sidechain nor requiring quill to be tied up when paying with quark.
they will be separate but only thing different is the exchange to connect both together.
If quill one day becomes so attractive people will acquire quark to get it. And since quill developers manage the fixed exchange rate we have some form of control
also to fix the economic model, quill max quantity has to be capped. If it is capped, value will change due to supply issue. However quark is adjusted based on inflation. When quill supply decreases it will impact quark demand. And dont forget quill exchange rate is fixed to quark
All of these are getting way too complicated...
Anyway here's my idea... if u guys really bent on companion coin it has to be something like this.
The coin has to have a fixed exchange rate to quark. It means 'pegging' according to economic terms. I will call the coin "quill" if this idea goes through... so 1 quark is always equivalent to 10 quill no matter where u go. The exchange rate to other alt coin can free float but to quark it remains the same.
To implement this fixed exchange rate idea, the quill has to integrate some codes to tie to quark without altering quark. Else if can't be done we have to create a centralized exchange rate at quark.cc meaning that in open market you can exchange quark to quill vice versa at any rate but over at central. It is tied to 1 quark to 10 quill.
To preserve its value we need to consider the distribution time frame to stretch longer. 10 times than quark 6 months. So if quill value goes up, so does quark because it is pegged at fixed exchange rate.
I agree, however no one will be able to control the economic aspect of that new coin in relation with quark even if you'll create a centralized exchange rate. If you want that new coin to be pegged at quark value with 10:1 ratio you need something build-in like the sidechains technology which won't be subjective to economic manipulation and will always translate 10 quill to 1 quark. You can then allow asic miners on that coin, gpu miners, etc because even if they control 100% of the hashrate power of that sidechain they won't be able to attack the quark network.
Instead of pools we'll be able to have lots of sidechains on which different quarkers will mine the one that gives them the best value, for example there could be the official quark sidechains released by the foundation with a 10:1 ratio with a percentage going to developers, and on top of that anyone could build a sidechain coin but will have the standard ratio of 100:1. That way people have options and will be attracted by the new technology with all sort of miners joining the most profitable sidechain based on their mining equipment. To implement this would be a big challenge but without a protocol controlled ratio you rely on free market and you would go in a funny situation when that companion coin will surpass Quark and instead of saving Quark you'll bring quarkers into a dust storm.