hi as someone who is just entering the hobby and i should remind you it is that,something to do for fun and entertainment. ive been slightly stunned by the amount of pomposity shown by rc club members in this thread and also the ignorance, look at the f-27 stryker, it is a park flyer as standard and on the 27mhz frequency however the stryker along with several other park flyers are customised by their owners and usualy recieve new 72mhz radio equipment and the people doing this arent all elitist ama members who think this hobby belongs to them and only fly in their precious fields,far from it they are the average joe who just wants to go and fly a model plane for some fun. people have been flying on 72mhz frequencies outside your starchy flying fields in thier local parks for years the introduction of a couple of production park flyers that have this mod done at the factory is not going to make much difference. the only thing that threatens rc flying is the attitude of some people who believe they have more right to enjoy this hobby than others because they chose to join a club,elitism will lead to rc dying out not a bunch of people flying on "your" sodding frequency!!