It doesn't matter how the wood is cut. With either quarter or slab sawn, you have to visual inspect the area that will run through the wrist of the stock. You need nice long straight grain through that area, with a minimum of run out. Whether it is slab or quarter sawn only means what direction that potential run out could be, i.e. either top to bottom, or side to side.

I have seen MANY blanks regardless of cut, that will not meet that requirement. Each blank needs to be evaluated on a piece by piece basis.

“I left long before daylight, alone but not lonely.”~Gordon Macquarrie