First of all, an Inspector can only require a 709 ride based on an accident, incident, personal observation or reports. Note the pural on the reports. What is done really only depends on why the ride is required. If it was something simple like ground looping a taildragger, all you most likely do is a few takeoffs and landings in a crosswind in a taildragger. If you busted a 135 ride, plan on a full checkride in accordance with the applicable Practical Test Standards for the certificate you hold. Not the certificate required. According to Orders 8400.10 and 8700.10, the FAA can not require you to take the ride in a particular type of aircraft unless the manuver(s) in question is paquilar to that type aircraft. In other words, if you ground loop a Luscombe, plan on taking the ride in a Luscombe, or at least another taildragger.
If there is bad blood between the inspector and yourself or your employer, request another inspector give the ride, IN WRITING! Also insist that the inspector be current and qualified in the aircraft. And also document everything you communicate with the FAA. And get some good instruction prior to the checkride.