I think Rookie made some temporary strakes for his Panther. PM him and see what he did.
I added 73 1/2" (16"original taper down + 57 1/2" of newstrake) to my Panther. I have before and after videos somewhere. The additional strake picked my boat out of the water and gave it a floating feeling. Before it ran really wet. I gained a couple MPH and it really carried the bow well. I started with 8' white oak profiles. I screwed and glued the strakes to the bottom and went out and tested. I would put the boat back on the trailer and cut off 10" of strake and then go test. Repeated until I found what I thought was a good feeling and handling boat. I then glassed them onto the hull. I got the idea from Ben Perfected on here. He had done it to his Panther race boat. I couldn't go off his dimensions because he has a Bravo boat and mine is TRS. Different COG