I guess location of the stripe depends on where you are pushing/pulling from. Not to rebut the good doctor at all, as there are surely many good methods, but I find I'm usually at the nose to make a little push/pull adjustment, so on my TW airplane I needed the stripe on the inside to see it. I'm guessing that being on a tow bar on an A model may be similar. But if ya got a buddy wing walking, oudside may be mo betta.
Then again, I flopped my tires on the rims for longer wear this summer, and now I have a stripe on each side (one faded, one not).
Will be interested to hear if there are stripe mediums that cause tire rot or corrosion! I used a swab of spray paint on a brush...better not take that as a recommendation till we hear from the vulcanizing experts!
Cheers,
Bob