I've done a few 100ks and endurance training

With respect to footwear, personal choice but I'd advise having at least two different types/pairs to avoid pressure and heat in same places.

When training for ascent of Mont Blanc I was doing 10k runs in about 56mins for general fitness and then walks building up from 4 hours to 12 hours once a week.

You need to put the time in or you'll pay on the day

Posted By: Worthing Yellow, Feb 20, 16:22:59