question about the depth of v20 cockpits

[tesco]

i had a v20 i think it was a 1978. the cockpit was deep and the sides were high when u were standing in the back of the boat. i looked at a 1990 v20 and the sides were below my knee when ur in the back of the boat. does anyone know what year wellcraft made the sides on the boat lower ? or is it possible they raised the floor height ? either way i want one thats deep and im not sure what is the year they changed it. any help would be great.