During my postdoc at the Niels Bohr Institute i started working on a manuscript about asymmetric mutations rates and its implications for the fitness landscape methaphor. I was never able to tie that paper together and it has been lying around for almost 5 years collecting dust. Recently I told Dan Nichol about my unfinished work, and after having read the draft asked me why I never tried to communicate the results. I didn't really have a good answer, so instead I sat down and cleaned up the draft and turned it into something readable.
I'm not quite sure it reaches publication standards so for the moment I've uploaded it to bioarxiv.org. If you have any suggestions for where it can be submitted please let me know.
Directional variation in evolution: consequences for the fitness landscape metaphor.