I used my Copeland nickel D for an extended period this past weekend at the fair and there is only one issue. The high G, A, B, C are incredibly loud and shrill. Much more so then the notes lower then that. Enough so it hurt my ears. Is that normal? Someone had once said that the Copeland person would revoice a whistle if there were a need.
Any suggestions?
Oh and one of our other chiffers, Satyricon234 was kind enough to come to the fair. Decent sort of fellow!
My brass Copeland was incredibly loud as well in the high notes. I had mine revoiced and liked the resulting whistle much better than the original. So go for it! 
I’ve had two Copelands re-voiced (C, A), one for a similar reason to yours, both times successfully. Why not just call or e-mail Jim Rementer; It’s likely he’ll be happy to have it done for you.
Philo
I, too, have had Copelands revoiced.
Could one, in fact, order a Copeland, specifying that it sound like one that is revoiced?
No offense intended to anyone, really, but I’m having a difficult time understanding why (over the years) we see so many questions (here) that should be asked directly of the maker? If you were an instrument maker, would you really want someone you didn’t know, on some forum somewhere, telling other people what you (the maker) could, or could not, do?
Again, not trying ding anyone here, just offering some food for thought.
And on that note, I offer an apology to all the makers I’ve answered for over the years - it’s only now that I make instruments myself, that I realize the error of my previous ways! 
Loren
Of course, you should send it back to have it taken care of. If you need the address, please let me know.
Jim
Copeland Woodwinds
The nickel copelands can be loud and shrill upstairs.
One option is to play the top notes a bit stacatto.
When I’ve read “revoicing” I’ve always imagined it to be tweaking the isntrument so that it is more suited to the owner’s particular tastes. I’m sure the folks at Copeland would be more than happy to work with a new customer to … pre-tweak, as it were, and take the customer’s preferences into account. But I also agree with Loren - the best folks to ask are the ones in the shop.
I’m still mystified by revoicing. How is it done? How is revoicing different from tweaking? 
Brian
Thanks for all the tips and thanks to Jim for his offer. I will send it when I get the address.
Interesting question, and oddly enough something I was thinking about writing a bit on just last week, however since this thread is about copeland whistles, I’ll leave it for JimR to respond in this thread if he cares to.
Loren