Sorry for you loss Keani.
Your dad had been active in this community for a very long time and was well respected by many here.
I remember having conversations with him online about his “supercharger” fins probably 20 years ago now.
I know some guys that had some of his fins, but it was a long time ago and they live in Florida and I’m in NC now. I’ll reach out to them though.
Just so you’re aware, you dad posted extensively on this site and there is an extensive archive on here so if you desire, you can go back and read through all of his old posts.
There are some photos of him floating around:
https://forum.swaylocks.com/t/post-pictures-of-your-latest-project-what-ya-been-working-on/37899/632
Here’s his user account that shows all his activity over the years:
https://forum.swaylocks.com/u/herbspitzer/activity
He was creative as shit and definitely followed his own path:
https://forum.swaylocks.com/t/show-us-your-home-made-fins/44757/515