NF, I think the one constant you'll notice here is that, to prolong engine life, add after run oil and turn the engine over a few times. I'm glad Rocknbil posted that tid bit on fuel inlet vs. air inlet because it makes sense and I did not think of that way before.
However you add ARO, just be sure you do, man! I also suggest, again, just my preference, that you not leave fuel in the tank for more than a day or two at the most! Nitro fuel attracts water, and speaking from experience, leaving fuel in the tank for awhile equates to having an almost impossibly gummed-up engine to break down and clean! Spare yourself the headaches, man!
However you add ARO, just be sure you do, man! I also suggest, again, just my preference, that you not leave fuel in the tank for more than a day or two at the most! Nitro fuel attracts water, and speaking from experience, leaving fuel in the tank for awhile equates to having an almost impossibly gummed-up engine to break down and clean! Spare yourself the headaches, man!