Has potential for sure. Perhaps Sept when it is cooler.
I had some lessons learned from the most recent jumble:
1) standing up a simple website may be better than craigslist only. CL can even link to the website.
People were flagging some of the CL posts. It also creates a uniform message.
2) there was a bandwagon effect, whereby one person leaving early caused more people to leave early.

Also buyers kept showing up after lunch, but many vendors were gone!
If we do a small window, say 10-2 or 3pm, we should require sellers to stay the full time.
3) Vinyl was a big hit. The vinyl dealers did well.
4) Events like this take time and multiple helpers. Pick any of your favorite audio shows. Year 1 was likely smaller with continued growth year over year.
BK