So, here’s a weird one. Decided to have a look at the bottom bracket yesterday due to the noise. There was a gap on the brake side of 1.8mm, and a gap on the chain side of 0.7mm. Unsure if the BB is working its way out or not? Unlikely as crank was on tight. Didn’t notice this before but may not have been fitted properly by Cannondale. Also took off the dust seals as everything sounded very gritty after the last few months of glorious weather. Cleaned everything out and put back internal o-ring and dust seal, greased everything up and pressed the BB back to the frame. No noise now whatsoever and definitely no play. Will see how it is after a proper ride.
Top jockey wheel on rear derailleur had about 2mm play and bolt was tight, so removed and took it apart, greased and reassembled. No play now (?!) and no gritty noise either. After taking it off it was now interfering with the 42t cassette gear even with the B screw all the way in ?!?! Now have a longer B screw in place and much better shifting. Did notice that shifting is cleaner with the clutch in the off position though.
Anyway, after a winters riding the Trigger has had some TLC and feels fantastic again. Suspension emptied and recompressed as DYAD was squeaking, brakes stripped and cleaned, everything tightened and lubed etc. :o)