Gentlemen thank you for your responses. They are greatly appreciated. For the record I don't have a problem with remeasuring the entire course other than the frustration of having thought I achieved my goal of measuring a very accurate course only for it to be flushed in an instant. I could go with the original TA but that's not me because I want the course to be the best I can put forward for the runners. Happy runners come back year after year. Unhappy runners don't come back.
Let me explain further. The TA is on a paved pedestrian path about 12' wide. Completely adequate for one way traffic but not so sure about two way (anticipated 150-200 runners). The path is bordered on both sides by obstacles (trees on one side, building on another) so I can't go off the pavement. I can't move the start or the finish lines enough to get the TA into a larger space. So the relocation of the TA means going back out to the main campus road to mark an artifical starting point. From there I go onto a stretch of sidewalk and instead of turning left to the path (current TA) I make a right turn to a stretch of path/road which is much more wide open and can easily accomidate a comfortable TA. The out and back from the common artificial starting point to the TA is roughly .25 miles. Once again, I am completely confident that I can revise the TA and achieve the exact number of counts while maintaining the shortest possible route. It just will not be part of one original measurement sequence.