If you are not familiar with Mike O'Neill's Blog, "FlyBoyz", I can tell you it is worth a look!! Mike is an aviation lover and especially model aviation!! His Blog is very professionally presented and covers a wide range of model aviation.
The link below is about the Ringmaster Fly-A-Thon
BUT I also recommend that you browse the whole of FlyBoyz (there are many interesting posts there) and maybe register too so that you will get notices of his new posts. You do
NOT have to register to see his posts but you may miss some new ones if you don't.
http://www.flyboyzblog.com/7th-annual-worldwide-ringmaster-fly-a-thon/