Well...I would (1) work those scrapes that he is hitting. Have you actually seem him or have pics of him working the scrapes? I wouldn't use a dripper IMO. And I also wouldn't use a big box store deer pee, who knows how long its been in the bottle?? Spend a lil extra money and get a good quality deer scent (look at huntfishjournal.com and try some of the scent they use, I think its called trail and scrape something or another. I work with one of the guys who is one of their "field staff" members and he swears by it, I purchased a bottle the year before last and am actually picking up a bottle tomorrow from him and its so much different than the stuff hanging on the shelves at the store smelling like 90% ammonia. And they have podcasts you can listen to and learn a lot from and will tell you how to use it properly). And (2) have you tried using a good mineral to bring them in? The year before last I started a mineral pit at the house and they are still tearing it up. Last year I dumped some whitetail inst. 30-06 mineral in it and I've never seen deer eat as much dirt as I did with that stuff! They love it. Matter of fact I haven't put any mineral in it this year and they are still pawing it up, I go out every couple of weeks with a shovel and break up the top 2-4" of dirt and they keep coming back. Another good, cheap mineral are the red mineral blocks from tsc...if you have them around you. Break them up into smaller chunks and it will make a good mineral site. Personally I wouldn't go the route of these flavored attractants, not sure if a big old mature buck will fall for them if they've never been there and then all of a sudden show up. That's where I would start. But most importantly, and I'm sure you know, try not to put any pressure on him...at all. Good luck and keep us posted.