If you are going out to Tinkers Hole and Iona you might want to conisder making a complete circumnavigaton of Mull. Heading up the West coast useful anchorages are Bunessan, Gometra harbour (between Gometra and Ulva) and Loch ??? up near Croig on the NW coast, which is OK so long as the wind is offshore but could be a trap in a strong onshore wind. On the way you can visit Staffa (difficult to land unless flat calm but you can sail up to Fingals Cave and peer in) and Lunga in the Treshnish Isles (good anchorage, but a bit of rock-dodging to get in and out). A trip across to Coll is also worthwhile in decent weather.
.............................................................................Fairwinds at anchor at Lunga, Treshnish Isles
We've been round Mull twice but there's still a huge amount of Stuff on the West Coast of Mull we haven't seen. However, there's two reasons for us not to go too far West of Mull. Firstly we haven't seen much South of Mull (Jura, Islay and the mainland of Kintyre peninsula) and secondly given it's a spring trip & if we're in shelter we can sail in anything. If we're in Geometra Harbour and it blows hard from the south we'll want to stay put. If we're behind Jura and it blows like stink we'll just go out with slightly bigger grins than normal.
All great places noted for the future, though. Plus a spectacular photo, so thanks.