Mike, Welcome
We have had this for decades. Both my husband and have FMS and now our 18 year old. There are a lot of links below that have great info and research.
New to boards... and .....IN A NUT SHELL
It is not easy to deal with but, a sense of hummor helps and lots of research.
By the way there are 18 points they use to DX. The memory part really bugs me.
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Take care ~Kim & Gary~