Hi Carl,
When we first made the wire we did not realize how different from 7 strand 19 strand would be. We knew it was smoother and more flexible and less likely to kink but we did not know there would be a whole new learning curve on how to spool the wire. As you mentioned "in the future you will instruct your dealers and customers on how to properly install the wire onto reels." There has never been a more precise statement. In the future we will be putting instructions on how to spool the wire and we will be letting our dealers know. For anyone that has broken strands this has been the critical point.
I will attempt to explain what happens with wire in the spooling process as my final comment.
When wire comes off a larger spool and onto a smaller spool, stress builds up in the line, if fingers are used to apply tension to get the wire to spool tighter onto the reel then the stress increases in relationship to the finger pressure applied as the fingers tension is forcing the strands upward into the line. If enough finger tension is applied, as the stress builds in the line, a stand could pop loose from the group of stranded wire and eventually this strand will become a broken strand. If the line is used without relieving the build up stress then many other issues will occur such as, line digging into itself, twists happening in the line when setting lines, broken strands etc. It is important to note that 99% of the cause of broken strands occurs due to pent up stress in the line from the initial spooling process. The other 1% would be due to either exerting too much force on the line beyond the lines breaking strength or using equipment that causes excess friction on the line.
The solution.
When spooling from the larger spool onto a smaller spool have someone keep slight tension on the larger spool. Guiding the wire with one finger is a good idea to get a even spool but do not use two fingers as our natural reaction is to squeeze the wire. When spooling is complete then add a ball bearing snap swivel to the end and attach a weight on the end of the snap as Carl mentioned. This will remove all stress from the wire. You are now ready to fish.