We typically see deer hitting sites FAST. We use so much scent in our products we often have deer showing up within a few hours. In lower deer areas it may take a coupe of days. 

For Mast Magnet start with about 5lbs and see how long it lasts at that site. It will depend largely on deer density and how much other food is available. Larger piles last longer in high deer areas. For Magnet Dust a light shake is all you need to get deer stopping by. 

That's entirely up to you! We tested every single one before we ever brought it to our customers and all perform great. Deer always have their favorites so grab a sampler and try out a few flavors to see what your deer prefer. 

Mast Magnet is the feed based attractant that pulls deer in and keeps them coming back for more. Magnet Dust is the same scent in a shaker for your corn, a camera set, or the wind. The scent gets deer to come investigate but they'll figure out there's no feed eventually so its best used as a curiosity scent in front of cameras or while hunting rather than a destination.