Unit 40 can be very good, but you have limited movement due to the amount of private. We will see how my hunt goes this year and we will be able to decide. With a couple more points you can hunt unit 61 archery and have much more manuverability. Did you see my other post of the unit 61 sheds (390") ?
There can be too much of a good thing with antler rattling.
I like to hit the horns together for a good 30- to 40-second rattling sequence and then hang them up and resist the urge to hit them again.
This works to the hunter's advantage, because if a buck has heard it, he may have been 300 or 400 yards away and he comes in and he's not exactly sure where it came from.
When finally is time to rattle again throw a slight change-up into the routine.
The second time, don't rattle as loud...