Earlier in this thread Michael wrote:

"However now I have developed a special disposable meter that I have clients swallow, so that I can get a better reading of their " inner glow" or their "essence" if you will. This has always been a challenge for us portrait types that feel the need to capture their subjects "essence". A portrait with an underexposed essence has always been a pet peeve of mine. With this new meter, I'm now better able to balance the strobes with this essence and make a far more revealing portrait. I'm planning to put this invention on the market soon and will market it under the name "the Glow Worm". "

My hat's off to you Michael. I think your disposable type of internal exposure meter has definite advantages over my reusable design!
(I'd be interested in an exclusive Canadian market distribution deal.)