This afternoon, I knocked together a simple profitability auto-switcher that works with nvOC and NiceHash:
https://gitlab.com/salfter/nvoc-nicehash-switcher
https://gitlab.com/salfter/nvoc-nicehash-switcher
Nice work
I will integrate this into the next oneBash / v0018.
I will keep your default BTC address and ensure it is clear you implemented the instantaneous profit switching algorithm.
I do think with when using different algos in makes sense to have different clocks; however I don't think the settings for those should be spread out over a bunch of different bash files.
I will bring all the settings inside oneBash and make a:
SALFTER_NICEHASH_PROFIT_SWITCHING="YES" YES / NO switch
Using your implementation; it should only require a few modifications to implement other targets such as 'lowest difficulty out of a given set of coins' and more.
Thanks for providing another tool to the community,
Sounds like a plan.
More centralized configuration probably would make it easier to add more algos. I originally had the card configuration code duplicated across all of those batch files, before I separated it out into set_power.sh. I have an idea to get rid of most of those scripts, but I've put off my paying job enough for this morning and need to hunker down to that. 
I will hold off on integrating this for now then (and wait for your changes); in the meantime I will make a link to your repo on the OP.