At what point is it taking the chunk out?
If it is taking it out in the center, I would suggest taking multiple shallow cuts until you get to where you want to be. as far as depth.
If it is on the end as the bit comes out of the piece, try "pushing" the piece with a scrap piece of wood, and it will not create the tear out on the good piece, but on the scrap piece, instead.
If it is taking it out in the center, I would suggest taking multiple shallow cuts until you get to where you want to be. as far as depth.
If it is on the end as the bit comes out of the piece, try "pushing" the piece with a scrap piece of wood, and it will not create the tear out on the good piece, but on the scrap piece, instead.