This may be a bit off topic but how close do you guys fly towards the amber footer up high?
I fly the -700 and when holding even above FL250 the FMC has you drone along at about 5-10 kts above the footer. Depending on how smooth the ride is I usually stay at least 10 kts above the footer and open the window if I have to.
The other day I flew with someone that was on the 767 for a long time and we held at FL 300 and above and I flew 15 kts above the footer and he was very uncomfortable about the speed. I did speed up some to make him happy.
So coming back to the thread, even at 410 and in heading mode with a 30 deg. bank angle, there seems to be sometimes plenty of speed margin towards the amber footer. Out airline manual has no guidance on the bank angle, yet most guys bank 10 or 15 degs only up high. Not sure if this is "technically" required though. I seem to remember a past thread on european carriers (Ryanair?) requiring to limit the bank angle at certain altitudes.