I don't know the 35', but the 28' is the original 28' Magnum, designed and built by Harry Schoell for Aronow. It later was lowered to be the 27' and 28' Magnums, and then massaged into the 28' Cigarette. Aronow sold the mold to Mr. K., who gave it to Mabry Edwards, who sold it to Randy. Great boat. Aronow won a couple of Worlds in one.
I owned a 28' Rabco, very strong hull and efficient. I had a lot of fun with that boat.