I bought a 28EFI/60 inch about a month ago. The word was better economy. Today I ran both my 27/60 and the EFI side by side, and when we got home the 27 was running 1.22g/hr, and the EFI ran 1.33 g/hr. The 27 has 400 hours on it, while the EFI has just 35. Can I expect the economy to go up any once the engine has had a longer break in time?