Drying apply can be really tricky. It likes to check mor than almost any wood I've seen. I'd either:
1. Immediately rough it out to almost finished shape, and then put glue on any areas that have exposed pith, wrap it in plastic and let it dry for 3-6 months or;
2. Leave the bark on, seal the ends with glue and leave it for a year.
Don't split it in half and dry it, or remove the bark and dry a round branch. Either of those are likely to induce checking. Just a word from the unwise.
Gabe