I own 110 acres (90 wooded). I have carved out 30 acres that I actively manage (cut on). (Most of the 30 acres was pasture 70-80 years ago). The other 60 acres I have done by professionals (logged in 1985 and again this coming winter). I have a forest management plan, done by a professional forester.
On my 30 acres, I remove about 10 cords of firewood a year (last 25 years). Three years ago, I started an extensive cutting. Unfortunately about 75% is going for pulp. (In 30 years after I'm gone, there is going to be some valuable timber there.) I average about a day a week from the middle of December to early March. I sell around 50 - 60 cords of pulp and 5 - 15 mbf of logs. A lot of work for very little money, but I enjoy it. Last winter hemlock pulp (at landing) brought $33/cord, pine pulp brought $28. At these prices, you aren't covering your costs.
To ensure timely trucking and full loads, I have to concentate on one species at a time. This does complicate things, as it would be more efficient to completely harvest a particular area and not have to return latter. It would also make felling a lot easier, if you aren't selectively cutting a particular species.
When cutting hardwood saw logs, it is important to line up your trucker and mill in advance. Mills have differents specifications. For instance, the best market for white birch has a minimum length of 9'4". (They will take crooked logs as long as they can get three 3' pieces out of it.)
I log with a Mahindra 6500 and Norse (10,400 lb) winch. I have a root grapple on the loader (also have the front weights on). All four wheels have chains. I can pull a pretty impressive load if the traction is good. (Front end wants to come up.) In the middle of February last year, we got nearly 2' of light snow. It never warmed up enough to settle and allow the packed snow in the logging road to freeze up. This limited my hitchs to about two thirds of normal.
If you are considering logging yourself, you should be real confident about your commitment. It is going to be difficult to get a commerical logger in after you have removed some of the most valuable timber and made a mess. Logging is dangerous. I don't care to remember all the close calls and couple of time that weren't close!
Bob