My name is olu and i am going to be a senior this coming fall in xc. i am 17. my best xc time is 18:25, and 17:30 on a flat course. i am trying to impress everyone this coming fall. I have been doing the lydiard base building for the past 6 weeks. i am now going on to the 90 mpw. i also did the 22mile long runs every saturday. my best time so far is 2:29:41. (648pace) and my hr is 150. but i just want to kno that if i complete this lydiard base building program, i still have 8 wks to go, how much will i expect to improve that xc time of 18:25. thanks for ur time.