Hi Alie.
Don't forget that if any log is over approx. 4 - 5 inch dia. it will split even with the ends sealed.
It is always best to either, part turn the timber, then dry and re-turn. Or cut the log into usable pieces, wax the ends and dry. Unless you intend turning the whole item very thin, in which case it will often dry without splitting.
In my experience when you acquire wet timber you can try to turn some, and at the same time, cut/seal/and put the rest away for a later date. After about 18 months in my case I had a regular supply of dry timber to use, then as I got more wood all I would do was cut/seal and salt it away. Now I very seldom use wet timber unless the item calls for it, and a added bonus is that air dried wood is so much nicer to use that kiln dried.