Reading some of these posts makes me think I must do IAB differently than most, because even with an Edge 1000, I don't see any use for it in supporting IAB. My hands are in front of the Garmin and trying to put my hands on it would be really awkward and frankly less stable. My forearms contact the handlebar about 2/3-3/4 of the way back to the elbow when I'm in IAB.
Same here, and also I never feel a desire to grab something.