Blimey this puzzle was a difficult one (and at odds with its GC code ironically). I couldn't get anywhere with it at first and the second hint (which I found by solving another of the COs puzzles) didn't help me at all. Then one day I was looking at it again and finally got that D'oh moment - sometimes I'm so slow. No problems with the decode and I was through the geochecker. Looking back at it now I can see how the hint helped me (but I still don't understand what the second one was about).
I tried looking for the cache last December but couldn't find it - I was working off my printout from when I had solved it a year before and when I got home I found the hint had been updated (and maybe the cache had been moved too). I saw that the CO had checked that the cache was in place six months ago so I decided to attempt a resuscitation today.
It was quite busy along here today with a tractor doing some hedging. My heart sank as I arrived at the GZ as I found an old muggle couple standing close by with a camera. I stopped and spent a minute or two taking off my boots to get rid of a couple of annoying stones. By the time I had finished they had too so I was left to search in peace.
It took me about five minutes to find the cache. I had searched two trees thoroughly and was starting to think it might have gone. But the first place I checked at the third tree contained the cache. I was very pleased to have my second resuscitation of the afternoon - this one was last found in March 2014.
I signed the log and left the Fire Geocoin.
Awarding a fave point for the great D'oh moment when I solved it.