CLA complete!

Well... not a full CLA, (thank goodness) but after acquiring the 360mm I had to get into the front lens group and clean some dust and a few very small fungus spots.

After making a custom spanner tool to remove the front lens group, I removed the front lens element, cleaned both front and back, then discovered the fungus was on the last inside element which I cleaned from the back side.

Operation successful! Time to go out and test this beast...