Been there, done that, sent the "specialist" on her way as soon as she started rambling about my aura. My issues went away with a switch to Dvorak years ago anyway.
But all of this is quite irrelevant when one is talking about the inherently non-ergonomic use of a laptop that only happens in meetings and hotel rooms.
If your ergo expert is talking about auras instead of measuring your dimensions and evaluating your posture, you need to find a real ergo expert. Even for ad-hoc use in meeting rooms and hotel rooms, a good expert can help you do a better job and protect your nerves. Anyone who works at a computer all day should probably go at least once a year, just like an annual physical.
http://mindfulmotionphysicaltherapy.com/what-is-an-ergonomic... (For info purposes - not endorsing this particular practitioner.)
I've had carpal and nerve issues in the past, so I watch this a lot... generally you can drive the better habits simply by reconfiguring the work setup.