I hunt Missouri every year where the ticks are plentiful. I have a routine that works pretty well. I spray my clothes with premetherine that is designed specifically for ticks...I'm not familiar with the DW Off 25%, but the stuff I use works well.
Equally important is the way I dress. Knee high rubber boots are great for early morning dew and wading creeks, but excel at preventing ticks from getting up your pantlegs. I have hunted in camo bib overalls for years for tick protection. It doesn't give them a waistband area to enter since you are sitting on the ground and I've seen the other guys at camp that wear standard shirts and pants get 'em bad some years around the midsection. I use long cuffed gloves and always make sure they are pulled up. I wear a 3/4 headnet, but I always tuck the bottom into my jacket collar and pull it up on the sides and back over the bottom of my hat. This prevents getting ticks in your hair and neck area. Years of trial and error have proven these precautions to be worthwhile.
I also hunt with a Thermacell unit. It is more for mosquitos and black flies than ticks, but seems to do a great job on all insects.
Lastly, yes, I've seen the turkeys lousy with ticks as well. Although it looks cool, I will not carry a dead turkey over my shoulder. As the turkey's body cools, the ticks will be abandoning ship looking for another host and having the bird that close to your neck and hair is not favorable. I always carry my birds in the game bag of my vest. They fit in neatly with the head tucked under a wing. When you get back to camp or your truck lay the bird away from clothing and bedding for a while for the ticks to jump off.
If you follow these time honored suggestions, you should be able to concentrate on, and most importantly, enjoy your hunt.
"The joy of living is his, who has the heart to demand it." Teddy Roosevelt