I have managed to get it running on my back up node on the main net. I haven't encountered any issues so far.

My main node is replaying now. Hopefully it all goes smoothly. :)

As a new witness, and as my first hard fork, (and not being ranked very high) I feel like I can accept this level of risk to my block production history and risk any missed blocks. Anything I learn, I'll inform others. I haven't learned anything so far :)