I have been experiencing issues with the MPL snack processor. While active it's efficiency goes up to 2500%, drains EC really fast and does not produce snacks equal to the resources consumed.
KSP 1.3.1
Snacks 1.8.7
There's also this:
I wonder if real rocket engines with a limited thrust would maintain their isp relative to 100% thrust output or would they just become too inefficient.
Seems like I have homework to do now