Slips? That's a good one...C-Puffin":3m9yovfi said:...so I'm assuming that slips are first come, first serve.

Sequim has one dock - we'll almost certainly take it over, and possibly be 2 deep for some folks. And yes - first come, first served. There are also a couple mooring bouys as I recall.
This late in the year, there will probably be very few, if any other boats there. Last couple of years we've either had it to ourselves, or shared it with 1-2 other boats.
Here's a pic from last year's gathering - looks like there's room for roughly 10 boats on the dock.
