This was not a problem with the old chain. I sized the new chain according to the old, but when I installed it, found that the rear derrailleur spring was not loaded enough, so I took out a few more links. This allowed a good range of chain tension between the largest and smallest cogs. Now it skips. The old cogs do not look worn, but maybe I'm not looking at them correctly.
Does this help?
Thanks,
Rich