TOPIC:

Can someone recommend an alternative logging plugin to Lumberjack?

MovieSlate
www.movie-slate.com/Overview

What exactly are you trying to achieve?

by far not even close to the manyfold options of Lumberjack, but for simple tasks I recommend Apogees Metarecorder.
It comes as an audio-recorder, and allows to 'tap tags' - which imports flawless into FCPX.

So, if you just need to mark 'good one', 'next question', 'goal!' or whatever, this 5$ (five!) app is handy ...