Neil - I feel duly rebuked. Haven't gone to page 555 but the idea of running together sounds great. It seems I can run OK now but am a bit cautious about picking up the distances yet. I managed an hour and a half on my feet on soft ground 10 days ago so maybe we could build on that. In the background I have Berlin mara end of Sept so mileage will have to come soon. Am trying to get some extra leg muscles from the biking first! Have in-laws coming at the w/e so maybe not possible right away...
Hi Kaz. Cleats are a mechanical lock to attach your cycling shoes directly on to the pedals, so you can pull up (use hamstrings) as well as push down (using Quads). They are the more effective version of the old toe-clips or straps. But if you slow down and forget to unlock your foot, you just fall over. For more details, ask Eggy or Radar Sal....

DLR - Achilles tendon is the biggest in our body. It takes a lot of punishment. So when it is grumbling, best take heed. Maybe you need to retrench and review your current objectives. Take care buddy.