You're welcome: it comes free with every piece of unsolicited advice received.
Seriously, I haven't used my Garmin for routing for a few months due to it being winter but, for me, the benefits of the cycle.travel routing far outweigh any anomalies (that may or may not be caused by it) with a roundabout symbol; think I can trust myself to know which way to go round one.
Have a good weekend.
