Huck:
Thank you for that; I can't imagine that there is anyone else on pprune who knows more about the modern-day DC-10 than you do.
I did my initial course with AA at DFW in 1979 and I still have the manual:
Landing Gear Operating:
Extension - 260 knots/0.70M
Retraction: 230 knots/0.70M
Landing Gear Extended:
300 knots/0.70M
NOTE: The limit speed following use of Alternate Gear Extension System is 260 kts/0.70M.
I really envy you for being still being able to fly one of the best flying machines ever invented.
I flew the DC-10 for five different operators and I loved every minute of it.
I wasn't totally wrong with my 300 knots but then it was 25 years ago!