On Sun, 02 Jun 2013 10:23:26 -0400, Stormin Mormon wrote:

I'd run the both on the richer mix, the 40:1.

That's what I do.

I save the original 2+ounce 40:1 oil containers that
came with the unit, and then I buy the replacement
two-stroke oil in standard quart sizes.

Then I refill the 40:1 containers, so that I always have a
convenient mixing procedure when I need more two-stroke gas.