Hunting where you are seeing active "scrape lines" is a good strategy ... but don't count it as a sure thing.

I use a drag rag wet with urine that I have collected from deer that I have killed. I use this and a "oily" tarsal (if I have one off a buck that I killed) in an attempt to cover up some of my "walk-in" scent. I'll rub the gland on a nearby sapling and place the drag rag and scent gland near where I am set-up. That is about as close as I come creating to a mock scrape, using a cover scent or attractant.

Not sure if any of this helps but .... why not?