to a veneer house allen, it has to be perfect...they look at the logs in the rough stage and make there best judgment..once they start cutting the little cracks would turn it into scrap for them. the cracks will remain there and would need to be filled in some manner. to a veneer distributor that isnt quality veneer.. you can cut it in the thickness you want but those little cracks will need to be filled..so you can do as you want but just remember that those cracks are gonna be there..probably from wind shake or the dropping of the tree.
If in Doubt, Build it Stout!
One hand washes the other!
Don't put off today till tomorrow!