I've been out on said tyres at the weekend, along a mix of lanes.
Road: Take a bit of getting used to, especially on bends, the rear is a little squirmy under firm throtte, but overall, not too bad.
Hard pack: Absolutely great, loads of grip and traction.
Light gravel: Good, gave confidence.
Mud: Better grip than I've ever had before. Confidence inspiring downhill and very grippy going uphill.
Wet grass/Soft mud: Again, better than either the TKC or MT43s
Summary, I need more confidence in less PSI. I was running at 20 and should have been lower. Will try around 15 next time and see how I get on. I also need more practise at coping with the tyres slipping around on different surfaces. To me, it's quite disconcerting when both wheels seem to be choosing your direction, instead of you. Ultimately you get there but there's a lot of work to be done.
I need to get out more.