"be precise" (2016-03-15)

Wrong RC to #3. (longer route though got good flow through #2)
Wrong RC to #6. (50/50 choice but had no flow. Had to stop and turn around)
DQ to #7 (we were told there was no artificial walls) :(
Wrong RC to #20. (to the left would have been quicker I think)

Got so confused at the last section (21,22,23) and I acidentally planned from 20-22!! oops. Then got confused, wandered around a bit and finally worked it out what I'd stupidly done. Roughly 1:30 lost.

Good around the rest.