This ones my best for TOUGH roast..
Put roast in crock pot for 9 hours on LOW..
Dump a jar of Greek Peppers in the crock pot..
After 9 hours shred meat..and put back in crock pot for 20 minutes...
It will be Fork tender.EVERY TIME...I add mushrooms, sour cream and roll up in a burito wrap..totally awesome..my best recipe..