Steve,
Thanks so much for the feedback. It's nice to hear some positive aspects of the 45 when I'm in the final couple weeks of having to make a decision. I'm so excited after seeing all the great photography by the many photographers on this website. Everything is on it's way except the viewfinder, a decision I'm still wavering on, but still have some time to feel it out with other opinions from divers like you. Maybe someone has one at the dive shop here in Tucson that I can try out in the pool just to get an idea what I'm dealing with in terms of orientation. I appreciate your feedback as the more I get, the better I'll be able to make the final decision that will hopefully be the best one. Either way, it's not a "do or die" situation; I'll live with it and change if necessary.
The Kenko TC is just so I can play a little more with WAM on the Tokino when I'm also doing seascape video for educational films. So, I may just use it with the 100mm to give me a little more working room for high magnification, but I can leave it off too if it causes problems, like focusing issues, etc.
Again, thanks for the feedback. I love this site and all the support divers give each other! It's really great.
Best,
Marsh