All I got to say is if not a past or present IDI owner then I suggest attend a PSD, Duramax or CTD event and pass on the "Olde School" Event. The logo pretty much says it all in "Annual Gathering of Classic Ford Diesels" meaning no new ones.
But if you have owned an IDI and have attended a general diesel rally you would understand that all the other diesel owners pretty much treat you as dirt on their shoes. Nothing is aimed at your era diesel and as far as everyone is concerned (for the most part) it's not a real diesel, or at least that is the feeling conveyed. So in response to that we formed our own event that is tailored to only the Older mechanically injected Ford Diesels. Trust me if your not an IDI'er you would feel out of place at an IDI event because it's all about the mechanical injection and nothing about the others.
They have their events we have ours type of thing.
Also if anyone is thinking of coming to one of the IDI Events you should realize that these are the "Disney World" of the Diesel events. Meaning that if it's not acceptable at your local Church Social then it won't be accepted here either. These are a family type event, doesn't mean that a guy can't have a beer or two but don't think your going to get looped and nothing won't be said. There are activities planned for the kids and the adults (typically a cruise or tech section headed up by one of the other members).
We (the IDI Crowd) pride ourselves in the fact that any campground that we have attended as a group is flat begging for us to return. This is not something all diesel (auto) groups achieve. There is a local group here in this area that most of the campground owners would perfer never come back because of the activities they bring along with them. Some of the comments that past campground owners have made include "You were the best car/truck group we have ever had in", "when are you folks going to return - we would love to have more of your type back", "we have had problems with other car groups in the past but not yours, please feel free to hold another ralley here". Think of an IDI event as a old farts RV ralley and what would be acceptable there is acceptable at an IDI event.
Not to sound standoff-ish but that is feel of an IDI Event. Not pointing fingers here at anyone but just in case anyone was wondering what an IDI event was all about. This is something that you would not feel uncomfrontable in any way shape of form bringing your kids along to attend. No matter how "prudish" you might be. These truly are the "Disney World" of events.