I've always run just about anything two stroke at 32:1, just what I find works the best.
On a bit of an interesting side note, you do realize that when you add more oil to the mix, you are leaning out the gas fuel mixture, as the oil is not a combustion producing part of the air fuel mixture formula.
For example, if you are running say a #100 main jet in your carb, and you are at 50:1, if you switch to 32:1 you are putting more oil into the gasoline mixture that gets burnt in the engine, so that extra oil displaces some of the gasoline, which means less gasoline, and a leaner air fuel mixture, remember, the oil is just a lubricant, it is not part of the engine's combustion. So if you go to a 32:1 oil fuel mix, you have better go up a few main jet sizes in your carb......... if that makes sense
One other thing, if you are going to do a lot of milling, look around for a good used older saw, if you are at all mechanically inclined, chainsaw engines are NOT hard to work on, they can be rebuilt easily, by yourself or a good shop. The older saws, if you can find one, are not very desirable for most guys, as they lack a chain break, which is a very nice safety feature, but on a mill, it will not matter. Also, the older motors have a longer stroke motor, with a bit slower chain speed, but the longer stroke, IMHO is what you want, as it gives you more torque, which, is what really moves the chain through the wood when you have 90% of the bar buried in a log, or at least that is my opinion, gained from experience, on the subject
Good luck, let us know what you do, and if you do do some milling, we expect pictures
The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
William Arthur Ward