FRA rules do have lots of loopholes, the reason for this is to allow for development of machinery.

It is not FRA policy to dictate on how machines are built other than already specified in its build rules.

When a new inovation or style is encountered it is up to an individual event organiser to allow a new style to run.

After this it is usually put on the FRA agenda by the event organiser for discussion as to safe use or suitability. A considered opinion is then offered.