Interesting. I was young during tickets and my memory is unreliable, but I bolstered that with some research including this WDW Magazine article:
WDW Magazine
Key quote: "Here’s something many people who didn’t actually use the Disney attraction ticket system don’t often know: Guests could mix and match tickets! If you had multiple A, B, C, and D tickets but no E tickets, for example, you could use multiple tickets to total the value of the ticket you need."
Another article (
Article) says: "You were allowed to “bundle” tickets, even from several books, to get on other rides; bundling before bundling was cool! For example, if you wanted to get on a “C” ticket ride, you could trade in two “A” tickets."
And here is a paragraph from Wikipedia: "The coupons had a face value for use on rides, with an "A" ticket worth $0.10, "B" $0.15, "C" $0.25, "D" $0.50, and "E", $0.85. This meant one could ride any ride if the ticket or a combination of tickets met or exceeded the value of that ride, so one could overpay an "A" ticket ride with a "B" ticket or higher, or present an "A", "C", and "D" ticket together instead of an "E" ticket."
I'm totally aware any/all these sources could be incorrect, I respect your first-hand experience, but I wonder why anyone remembers/reports this dynamic if it never happened?