If anyone is looking for a fun and highly competitive warmup race just before this event, the weekend before (March 8,9,10), there is a big race happening near Niagara Falls, in Welland, Ontario, Canada. It's held in the center court of the Seaway Mall. There's a thread for it
in the canadian regional section here on RCTech. A few names you will know are already signed up. It will be a good time.
I'd really love to come down to Horsham for this ROAR Nats race. I've never been to any ROAR races yet. Mid month weekends are usually a big problem for me though, due to work.