I read a lot about this last year and never ended up doing anything. However, one article in paticluar talked about different products for making scrapes. The one product I really liked was called "Deer Dirt". It's a scented dirt that guarantees the scent for up to 30 days I believe. This allows you to attend to your scrape once and not have to spread your scent after the initial visit. The website for this is
www.higginsoutdoors.com. Italked toDon Higgins before and he's a very nice guy and could really help you out with your scrapes. The site goes into a lot more detail, but it's an interesting product to say the least!
There was another product that wasa rubber boot cover. I can't remember thename of it, but it was a different type of rubber that hadno scent to it. If I can remember later or if someone else knows what I'mtalking about feel free to post!
Hope this helps!