Not An Issue: I made a tool which reloads config based on profitability!
I made a google spreadsheet which exports a config.json for XMRIG-PROXY based on most profitable coin to mine. Works with any cryptonight coin (but limited to one algo type (heavy/lite/cn) until algo switch is supported on miner side. Some setup required, but this is relatively easy. 

Features: 

- Tracks coins mined from pool and value of coins

-  Tracks time to reach return on investment

-  Calculate profits based on average network diff for 4,6,12 and 24 hrs, as well as no average (current diff), as well as forcing which coin to mine

-  Tracking and calculating values in any FIAT available

- and much more

Currently in beta, and some bugs are to be expected. Support for XMRIG-AMD/CPU and NVIDIA built in, but disabled in anticipation of new releases supporting dynamic algo and config change. Make a copy in order to use from this sheet: 


https://docs.google.com/spreadsheets/d/19iB4edgllTGLePAuS9Tk64u5-OUpFAXn0wiVIVNuqKo/edit?usp=sharing