Yes, I think it is the lack of humidity that causes an issue. I can tell when the seasons change because this time of year the humidity in my basement drops into the 30's and I have to take that static shock every time I touch the un-powered rails. When we get into winter it is not uncommon to see humidity drop into the 20's.
I'll be adding Legacy over the next year and it is good to start picking up these notes. I'll have to start another page in my notebook along with my DCS notes.