I most certainly did "consider the OP carefully" Nero, and I'm politely disagreeing with several of your basic assumptions. Please reread/reconsider my post with that fact in mind.
Also, I purposefully wrote interpreter, not instructor. I wouldn't pull an instructor off the line for 1:1 either.
Anyway, aside from the Tap Commands on the line, here are some of the other accommodations most likely to be overlooked by the hearing:
- All instructors should be reminded to face someone who reads lips when talking to them. Turning away to look at something, or bending down to pick up a dropped pen, is the same as going silent in mid-sentence.
- During instruction and history, the instructor speaking need not face the lip reader directly, but should pause their speech when turning away to move, gesture, or point out the steady hold factors.
- Dropping your voice, as when making a side comment, also makes it much harder to read lips.
- Depending on the individual, visuals are often really helpful. It might be easy to follow the story line but difficult to pick up names and places without a visual aid to show the spelling. Another solution would be for the speaker to tell the person who reads lips the names of the people and places that will be mentioned ahead of time.
- Don't forget to repeat minor side-comments, made by those facing away from the shooter, just because it sucks to be left out of the conversation.
- Finally, both eyes and ears should still be required on the line, even if someone is deaf.