None of us in the forum that have been seasoned builders for more than a few years ever recommend 40:1 on a regular, run of the mill China Girl motor...They need their oil for proper lubrication and for cooling purposes.
On the forum, we recommend no less oil that 32:1 on regular CG motor 2 stroke motors, doesn't matter if we are discussing 2 cycle conventional, semi-synthetic, or full synthetic oils like what I use.
I run a Phantom 85 and after breakin, the factory recommends no less oil than 25:1 unless your in high heat conditions like I am here in the high deserts of New Mexico and therefore run 20:1 per manufacturer.
Oil IS important to the longevity and well being of your motor, why be cheap and chintz out on proper oiling???