Most non oily woods are workable at about 14% MC, fruit trees need to dry about 9-10% MC before they stop moving like snakes.
If you have some blanks that you are not sure if they are dry (safe to work with) or not, weight one blank and put it in the microwave for 2 minutes at normal cooking settings, let it cool down and re-weight it, if they is a weight difference, the blank is not dry and will require a few more bursts in the microwave but this time, you go for 30 seconds at the time with cooling in between. Weight it after a couple of 30 second bursts, if it continue to lose weight, continue doing those 30 seconds bursts until the wood/blank stops loosing weight, the wood/blank is then dry...!
HOWEVER, is very important that you let the blank(s) cool down to just slightly worm in your hand, before you proceed with the next heat burst, failing to do so, will cook/burn the wood from inside out.
The other very important factor is, after you dried the blanks/wood on the microwave, let them cool down inside the microwave with the door open, do not turn any of them immediately after that, get them out of the microwave and put them in a plate/container in an area were they are totally out of the weather but can "acclimatize" EMC to the temp and moisture content in the air, that will provide a equilibrium to the wood fibres and therefore, maintain the integrity of the wood structure and minimise any possibilities of movement after worked...!
Hope this helps...!
Cheers
George