No worries nightowl - thanks for your contribution.
I agree with you.
The 1 sec/kt (or 2kts?) is probably as good as any
Just for the record - 1sec./kt seems to work fairly well.
When do the times start? outbound, abeam or wings level, inbound, at intercept or wings level
I usually use abeam OR wings level, whichever is latest.
Exactly

- but unfortunately my Piper doesn't have one!
Cheers, m'3