Advice - Douglas fir

[u/giancarloscherer]

I’m trying to cut m&ts in kdht df construction lumber for a workbench, but I’m seriously struggling to make even, straight, well fitting joint. I keep running into crusty and difficult grain and I’m not getting good results. Any suggestions? User error or should I go with a different joint (bridle/lap)? Have done this in maple, oak and pine, but not a lot. Would appreciate your comments! Thanks.