This is a tuff thing to answer to, most people love their dog! At least most people I'd want to know. It could well be that your pup will work out fine for you and I really hope it does. But if it doesn't, don't be disappointed in the dog. He's just not been bred for it.
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...