It may not be a "purest" form of the sport, but it is a blast!
I can make it down to the wrecks and play around for awhile on my own.
With a scooter I can make it down, go over the entire wreck, and pick up lost masks and fins off the bottom on a single breath.
I have even been able to go down and put divers tanks back into the bc's, after their tank fell out of their back pack, and zoom away before their buddies even knew what happened.
It also helps to use a scooter to cover a large area quickly when looking for a wreck. We use scuba to do this on deeper wrecks, but freedive while doing on shallower ones.
If you are using one on a wreck, or in a cave, you need to make sure that its trimmed out right and your harness is the correct length. Once you have that set you should be able to run them with only one hand. I also don't run them all-out on scuba. When I freedive I like to run it as fast as possible for the fun of it.
We got a couple of those cheap little "turtle" scooters into the store to sell. I tried one out on the lake and gave up after about 10 minutes. It turns out that I can swim much faster than that thing can move. It was a real POS.
This past weekend I got to try out my father-in-laws new scooter for the first time. He just bought a Gavin and it blows away my little yellow Dacor. I can't afford one of my own, unless I sell all of my scuba gear. That might not be such a bad idea?
Jon