Pete,
I'm entirely unclear on how the ant that you suggests works?
If I understand it, what you've done is to make the end of the antenna "fat"??
As opposed to looping the end back under the main wire and not connecting the end back to
the main wire.
_-_-bear
I guess you can call it end-fat dipole. Sort of a take-off on a fan or bow-tie dipole. I came up with this back in the early 70's when I was living on a much smaller lot and didn't have enough room for a full size 75 meter inverted vee. I have no recollection of any background info that made me try this design. It might have been one of those mental revelations that pop into your head when you're sitting in the quiet place. Fed it with coax and a coiled balun. I seem to remember without the tuner the antenna had the best SWR around 3940. The total dimensional length was based on the space I had. The 20 foot length per leg was purely a "pull from the air" guesstimate.