DHoner, I understand your feelings a bit, (I was once a skeptic) but let me come to TN's defense as well.
I was done with diving in 2003 when injuries to both knees caused me to "hang up my spurs," (JetFins in this case). My knees just couldn't hack the "pounding".
Then my son wanted to get certified before going to USMC bootcamp and I thought, "maybe one more dive." I walked into a diveshop in Oceanside, CA and saw the goofiest looking fins I had ever seen. The divers were the the safety divers for Camp Pendleton and USMC Force Recon. They said not to knock them till I tried them. So I did. It was one of those rare moments in life when the space-time continuum synchronizes or something. WOW. I had never used anything like them. I could dive all day and my knees didn't hurt.
In fact, the fins allowed my knees to IMPROVE.
I no longer need to walk with a cane.
Last week, I spent almost every day in the water as we certified a unit of the US Army NATO forces serving here in Estonia.
I owe my chance to keep diving to Bob. Because of him, I can still dive even now that I'm in my fifties, I am TEACHING SCUBA to a new generation!
Excited? Oh yeah!
Compassionate? You bet!
Zealous? Do you have to ask!?
Hype doesn't allow you to walk again! Thanks BOB!!!!