Its good to be cautious, just dont get out of your comfort zone, the mountains and glens will be there for a long time.
If you feel the need for contact throughout the flight then go high, some feel a comfort in knowing that they are able to communicate at all times. Being a Saturday, if the weathers good you will not be on your own up there even if it does seem a bit desolate and lonely.
Keep a good listen and watch out for traffic heading to Oban at weekends. Another good reason to stick to Scottish as thats who most people will be using.
Have a good flight.