[palosanto]

If I zoom in to 150%, enter the annotation mode, zoom out to 100% and then leave, it reverts to 150%, as expected. I'm not seeing the 100% zoom issue you described at the end. The annotation mode will always start at whatever zoom mode the main display has.

Yeah, I'm not sure what I did earlier but it seems to behave like you describe now.  

I guess my main complaint is the change in pan coordinates going from being zoomed-in in view mode in a specific spot, to entering annotation mode, yes. the zoom level stays the same but the location has changed so I have to find the spot again.  
Once you implement the new touch options in the zoom/pan tool in annotation, I'll stay always in option 2 described in post #42 so I don't need to zoom before entering annot. mode.