Kellyguinn's last sentence should have been the first when it comes to using scent covering products. Always sit with favoring winds no matter what the manufacturers of the product you have bought tells you, almost 100% of which will be outright lies. As far as attractants go, as Kellyguinn noted, 100% natural urine is the best to use but you have to use each at the correct time of year. As far as bucks go, I have probably had the most success hanging a urine soaked tarsal gland, that I recovered along with the bladder contents from the previous year buck, above a mock scrape. That seems to drive any and all reason out of their brains when they smell an encroaching buck on their territory. I've even had more success with that than using natural estrous doe urine.