I didn't mind the Jumbo's and Jumbo giant's, BUT, a few i had were sold on or sent back for ridiculous poor quality, 40 Guns to Apache pass was one, and the Guns of Navarone was nothing more than a joke with the narration, it was the worst one next to straight jacket. Guns of Navarone is a very good film, (love this on 16mm in scope IB Tech), but the narrator was over whelming, 40 Guns had an utter hopeless image, soft and grainy, three prints later we got a refund, Straight Jacket, well, some people in the hobby love this one, i would have but again, the narration was a joke. I am sure columbia must have had a laugh at this one themselves.
The 20th century fox 400 footers did better, they still had some narration but it wasn't intrusive and often had none.
I think on this threads title, that those 400 footers that had narration added should have had a sticker on the front to let the buyer know, "with added narration" or " with shed loads of bulls***"