Hi Musky
You are correct in saying they never said it was "For sure coming in fall of 1975". But there are a few things you have to consider.
First off, they encouraged it and even pressed it to the R/F JW's. They told people to not get a higher education becasue time was too short and it would be better off spent preaching the "Good News" rather then learing a carrier. The encouraged people to sell their belingings and spend the rest of the "Old System", again, Preaching the "Good News". At the assemblies, and in the publications they actually put on the aires of a fervor of how short the time was. With titles like "Why are looking forward to 1975?" and such, building up the heated movement to look to that date.
If you actually go back in time and listen to the talks given at the District Assemblies on the subject, the enthusiasm and promotion they did to that date was a real build up, not just a sugestion.
People I remember were either selling their properties and going where "The need was greater" or pioneering, or they were buying up things because they KNEW they would not have to pay for them, because the end was so near.
If the WTS did not beleive it to be true, then they caught a ride on the fervor and used it ot their advantage, I fell it was actually both. They made a suggestion, that sounded good and rode it out all the way to the end encouraging it all the way. Then turned around and blamed everyone else for getting to caught up in the date.
Here is a copy of one talk I remember being given by a District Overseer about the date of 1975, he does not say "The End will come" but listen to the enthusiasm in his voice when he recommends that it might.
Click on the link you will need RealPlayer to listen to this talk.
it is not just a portion of the talk, it is the talk in it entirety http://www.watchtowernews.org/wav/sunutko75.html
The only thing he says for sure with a full definate is that the 6,000 years of mankind ends in 1975, but also how great it will be that maybe god will end every thing at the same time.
So you are correct to a point, but they did want that date to stand out and pushed it as though it was "The End".
Seedy