This appears to be the convention that was accepted some 2 and halve years ago and is indeed very similar to the F18 way of doing it.

Seems the GC has just formalized this agreement. I'm sorry if I contributed to the upset.

Using a different line style for the circle is probably a requirement to avoid future confusing and misunderstanding. A broken line of less thickness will do the trick I'm sure

Wouter


Wouter Hijink
Formula 16 NED 243 (one-off; homebuild)
The Netherlands