Has Gooey helped you that much for Goodra? I would think Sap Sipper would be useful here, mainly for the Grass moves like Spore, Sleep Powder, and Leech Seed which can be annoying at times.
Also, I might try out an EV spread of 196 HP, 252 SpA, and 60 Spe EVs in Goodra (with Modest) as this...