Excuse me? You're the one who is completely wrong my friend. The A3 is not a long plug. It's the same size as the #8.
According to OS, strait from the link you posted The A3 is "A long-lasting hot plug for most 2-strokes up to .60." I use the A3 in my OS 46FX, 61FX, and Evolution NT46. All engines run very well with 10-15% nitro.
Not that there's anything wrong with the #8. I just like the A3 better.

The only air plug that is a long plug is the type F. Other long plugs are for cars.