Thank you so much for the quick reply.  I have to say I am a person who is very much likes the idea of if its not broken do not fix it.  The miner is really doing well, and I have been very happy with it, I really wanted to make sure I wasnt doing a dis-service to the hardware.

I just got my first ASIC miner, a Antminer S9j, and it is doing great.  I am spending a lot of time reading and learning about mining and asics.
My s9j, currently says hardware version 16.8.1.3, file system version Mon Sep 17 10:27:45 CST 2018, logic version V2.16.

It is working great, but I if it could be running better or more effecient I am all for it, so I am curios if I should do a firmware upgrade and if so, what version, I have read that there are some versions you do not want to upgrade to.

Thank you for your time and advice.