The 30 Corsa was a good Race boat in its day I believe it was National Champion M Class in 78 (Cocktails) Tom Murphy/ Paul Haggerty
They had two deck molds one a race deck the other was raised.
The 32 Signature was a 30 Corsa with a two foot Stretch by Tommy Adams. If memory serves correctly!
Also the Corsa Hull plug was done by Nick Chapman.
I always liked the high freeboard of the Corsa remember in those days the competition consisted of the 27 Magnums and 28 Cigarettes those were low freeboard and with a race bolster you were well above the deck