New to RSS/Realism overhaul, and running into some problems

[brooklyn666]

So I finally made the jump to using RSS/Realism overhaul, and I'm running into some problems. I imagine most of these are part of the learning curve, and I apologize if my questions are covered elsewhere; it's possible I've missed things while trying to absorb all of this new info, but any help would be greatly appreciated.

1) Some engines are not properly sized. That's a 2.5m engine with a 2.5m AIES fuel tank. I imagine there's a cfg rescale edit somewhere that I need to change?

2) I'm guessing this is a problem with FAR or Deadly Reentry, but I didn't have this problem with either mod on the original size solar system. Basically, upon 1st stage cutoff, the second I jettison the stage, my upper stage and payload explodes, and the debris starts flying away from kerbin at a large fraction of c . I've checked the logs but there's no useful information there.

Again, any help is greatly appreciated.

[TheCanadianVendingMachine]

The Realism Overhaul mod is meant to be used with Stretchy Tanks. Those tanks will be able to be used with the engines

[regex]

These questions are probably best asked in the respective mod thread rather than this subforum. You'll have a much better chance of getting an answer in a timely fashion.