After a major workover of the code, here a sort of beta version. Its not advised that the 2.0.0 version should be used by people that just want a garanteed working script atm. But because of the complexity, that I don't really use back up servers, to reduce the time I need to check all possible settings etc, and the duration it took to add the multiple server support, I have attached the script to this post only.
I would really appreciate any input possible on the current state of the script, bugs, ideas, style issues, or whatsoever. Note that the default settings are currently set to extreme logging for debug purposes (you can change it back). If you want to post debug stuff, be aware that all your news server passwords, host etc will be there in the logs. PLEASE remove this stuff before posting. The best way to go is to just PM me the logs.
EDIT: deleted the attached version 2.0.0. This version causes the script to end in an endless loop , typically when more articles than connections per server are bad throughout the post, and not all from the beginning. If you have installed the above script, remove/disable it after reloading your NZBget via the SETTINGS -> SYSTEM page.
The fix I temporarily made is not 100% robust on the endless loop yet, so hopefully I can post another test version in the upcoming week.