Aloha Lee
Sorry I missed out on your thread and board building. My laptop needed a new motherboard so I was out touch when at home. Now It is back and working fine again.
It looks like you have done a nice job. Classic colors of course! I couldn’t tell in your photos but the tail thickness in your drawing would be too thick and the tail rocker a bit slim unless it was an early 70s model and then you are pretty close. The nose rocker is about right though many had less in the early 70s.
As for bottom designs, mine were flat in the front 3rd. Slight Vee in Center, increasing toward tail, with maximum Vee being well in front of the fin (reverse Vee???) fading to pretty much flat in the Tail. I would often do concave Vee panels.
I am not sure what you “classic bevels” comment is. It it is that super flat deck with a corner in it then angling off with a flatish rail down to the radius and tucked edge. Then I know what you are talking about… BUT… this was NOT a Pipeliner rail. This was common among a bunch of shapers that were following Brewers look and rails.
Gerry Lopez’s shapes (and surfing) pretty much defined the 70s Pipeliner and my further evolution of that design led a very small amount of shapers that specialized in boards for Pipeline. The rails on these boards rarely had that angular rail common on boards used at Sunset Beach.
The tails on our boards might have looked thick because they had a boxy rail that carried around through the tail. And the tail had a small steep beak. Similar to what short boards are today. But the actual thickness of these tails wasn’t exceptionally thick. They needed to be reasonably thin along with the narrow pintail to penetrate the wave face very early on when the surfer is not able to exert much downforce on the tail. But rather has to drive the board downward as quickly as possible to escape from the extreme jacking and pitching lip. This is particularly unique to Pipeline. Other waves do this, but Pipe is the best! Now with contemporary thin Tri Fins, the side fin and way further back tail fin, allows grip even though tails are wider. Additionally, boards are surfed much shorter then boards from those “old days” so the rider is now further back on the board and can more easily sink the tail.
None of this is to say that “other” boards didn’t work well at Pipeline. That would just be a different discussion.