Re: Oil injection
Well it would be a little bit safer, assuming that you never make any mistakes with the mixing. I think the probability of making an error preparing premix is higher than the probability of the oil injection system failing.
Better? I don't think so. It sure is a lot easier to keep oil in the tank than to try for a correct mix every time you add gas.
I like the options available for left over gas at the end of the season when there is no oil mixed in it. I have little interest in storing mixed fuel for extended periods. I would much rather drain it and burn it in one of my 4 stroke powered vehicles.
Bottom line? Go with the injection system.