I love doing this and here are the things I’ve found. I run a lt70 and own a tree removal service. I save black locust logs that are too big to fit in my firewood processor. Sawing these removes all the thick bark and debris. 5x5 inch posts are milled and then cut 16” which I then palletize. The space savings is incredible, as I can pack a full cord of firewood on a single heavy duty pallet of around 80cu/ft. I also supply restaurants that burn firewood, and they love this, although there’s definitely a markup in price. The down side- it’s more time consuming, to make up for time, you saw bigger higher grade sticks. It’s also tougher to get a fire started. My own two cents- I have the ability to do it, I enjoy doing it and it works for me.
