Fair enough - I think the 'tried and tested' thing is the most important part... what works for some doesn't work for all... I think it's best to come up with your own scedule and not go with what runnersworld say (as someone suggested)... I doubt a standard scedule would suit my anyway and I'm not ready to sit down yet and make a plan as I don't yet know what I can do... I tried before many times to have a proper plan and I kept changing it so much that in the end I shafted it all... Now I'm experimenting and doing own thing and putting off races for the moment... After I came back from holiday I started experimenting and breaking all the rules to see what I can do... To get a better time for my 5k I need do something special and break some of the boundaries... Also I need to take advantage of the summer holidays as when I go back to uni it will be extremely hard to motivate myself to run as much...Each to their own Revenged, but I find having a structured schedule keeps me on track and progressing. The schedule I follow is tried and tested to give results so that also gives me confidence.
I'm not a slave to the schedule though... if I'm too tired or threatened with injury I'll ease off, but also if I find that I can do a tempo run a bit faster than the schedule says then I will.
In the last schedule I used in training for London I did some of the longer runs... 18's and 20's about 10 to 15 minutes faster than the schedule said. So with my next schedule, due to start next week for Amsterdam marathon in October, I'm moving up a step