50 kays is my limit - 2012 Highland (Half) Fling

Really enjoyed 50 kays of the fling....but the last 8 0dd kays woah mama that hurt. Decided that limited training I would try and pace myself and that went well. But I think 50k races are my limit. Made it thru the roller-coaster and up Broke back mountain but I lost all drive in Bakers delight (about 50K) after I hit a rock un-clipped and put my leg down in an awkward position for a whoppa of a quad cramp. After a few mins got going again but was destroyed...Great Sandy desert and the rest zapped me and come over the line with nothing left.
Anyway took about 20 mins off last years time but was hoping for better - we all do
At 47 not sure if i have another one in me but we'll see....

After Thought -
One thing i noted they had a helicopter following the elites who headed off the same time - and after about 20 mins that chopper was a long way off - sounds like a quick race for them.