The sticky on metal removal has not worked consistently, for folks with copper in their water. I suspect it may be that some of the HEDP products are not quite what they are supposed to be, but I haven't confirmed that by testing the products.

That leaves me with no 'sure-fire' method for removing copper. If you have been successful with your dealer's method in the past, you may want to stick with that, this season. You might want to consider using the CuLator products to 'grab' copper added when you add water:

1 ppm Culator, direct from Amazon
1.5 ppm Culator, sold by Amazon, shipped from Periodic
4 ppm Culator, sold by Amazon, shipped from Periodic

Out of curiosity, why do you have so much copper in your fill water?