OK Pat. My experience is about a 6-10% attrition due to last minute family or work obligations that rear their unfortunate heads. If you are permitted up to 50 guests though, I don't see that you have a real concern.

I mainly asked because I was gonna put out my feelers for my local pards and didn't want to intrude on your party or the Campfire hopefuls until an appropiate juncture to butt-in occurred.

The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
William Arthur Ward