ATC will not give you a service unless it suit's them for thier own reasons.
...now that is:
Personally I spot the traffic then aim at it.
Oddly, that's also a technique for everyone from radar controllers to ship-drivers. If you're both moving (and not straight towards each other), and one aims at the other, you won't hit. Neither will you reliably achieve MSD, but in those circumstances, never mind.
Peter,
That's your opinion, Mr Hamster
Yes, it is. Thank you. Based on decades of experience and training.
It's not the legal position for private flight in a certified aircraft, whose required equipment etc is defined in the POH.
Where in the POH does it say which equipment may be unserviceable for flight?
The Cabair example is a redherring because they are an FTO and are bound up in all sorts of ways
Well, in fact, they've gone bust, so they
were..., but more importantly, vague statements like 'bound up in all sorts of ways' carry no weight in aviation, and only end up an embarrassment.