I hunt the northeast corner of the state, in heavy brush for the most part. yes it's a lot harder in brush. The things i have found that helps the most is that you will have stay in your stand/blind a lot longer, figure on about 45-60 minutes for each one.(or more, remember they have to find you)
I have been busted many times by moving to soon,(30-40min.) just as something came in. This kind of hunting requires the ability to sit still for a long time, so make your blind so that you can wiggle around a bit without being seen. Any movement on your part will get you busted, and you'll never know they were there.
One other thing to remember is that when you do get a shot, it may be face to face, don't take a rifle with a super dooper scope, or all you will see is fuzz. A over/under works very well for this kind of hunt, i like a .223/20ga. or a short barreled ar.
To me, this is the best kind of hunt, you never know what is going to pop up,(yodie, cat, bear)and when it does you have a split second to react. Good luck, blue