RE: OS 46 problem
Not as strong as the other one. The other engine is new though, it only has maybe 15 flights on it. The one giving me the problem was my first engine and probably has 75 flights on it.
The compression seems okay on the problem one, but I didn't really focus on that, so I am not 100% sure. I just went and spun it over a few times and it appears to have good compression. I don't have a compression tester.