No splits at all. The slab was sawn about 1" above the pith and 1" below the pith. IOW, the slab was perfectly quarter sawn, which is the most stable configuration for wood in general. You may be thinking about halving the log through the pith, in which case the lumber will have QS, rift and flatsawn sections and they will move differently as the log dries out and you will in fact get splits.