Sceptre or Tsunami whats the difference?

[ScottM]

From what I can tell, sometime in the late 70's the name was changed from Tsunami to Sceptre, even though it is the same boat. Granted, there are minor differences inside, but they are both cuddy models with full-width windshields and look identical next to each other. I wonder if the name changed when ownership went from Potter to CSY? I have an '82 built by CSY and it's a Sceptre.