To find CJ’s and the Thin Blue Line:
With your back to the reservoir, take the singletrack to the right of the obvious steep fireroad (this is currently taped off, but will hopefully be open again soon)
Head in there for about 30m, take the first available singletrack on your right.
Staying right takes you on to CJ’s – notable for it’s step on the way into a sharp right hand bend
Taking the left hand option takes you down towards the Thin Blue Line – steepish descent into a trail where it splits (obvious wooden sleeper in the trail). I think the Thin Blue Line actually applies to the bit immediately after the fire road, into some bermed corners. Ends at the same crossroads of multiple trails that the Long Run ends at.