Do the readings show up on the m11 screen, or is the spectrum screen still needed?

no it wont you will still need to use your spektrum unit

Bummer lol, that is what I figured though. Thanks!

the dx3s is the only one that will

That is whay I figured, but I got a smokin deal on my m11. Great condition, and I definitely like the way it feels, so I guess I can deal with mounting the telemetry display in the old antenna hole.