When I think of certain states that are NOT having success with their entries, etc., I think you have a blueprint here for how to do these trials right. When I was allowed to assume a position of leadership for the NBHA, I believe we encouraged these near dormant states in many ways. Suggestions included looking for newbies thru Craigslist, Facebook, etc.
At the same time that certain states were near dormant with American Field type trials, their AKC numbers were growing. Not to say the AKC trials don't appeal to a slightly different demographic but still people were coming to a welcoming and fun place to spend quality time with their animals. That is where good local walking clubs have an opportunity to bring new folks into the sport.
I applaud the West End group for their great draw and hope that your weather is wonderful and folks have a great time!