We had quite some trouble finding MC1! At first, the GPS was (repeatedly) pointing us to the wrong location. We spent 30 minutes searching and impaling ourselves on hawthorn spikes. (They get stuck in your skin, and it takes quite some tugging to get them out. And they hurt!)
Eventually, our GPS receiver sent us to the correct location -- not far away from the original spot, but with a completely different set of search possibilities. Bingo! MC1 was retrieved (very nice, by the way!), and we quickly found RC2 from the information thereon.
Thanks for the evening caching!