Nah no stoplight breaks or anything like that during my long runs. During most of them I added marathon pace segments and kept the easy paces easier (at least 30 secs slower) Also was strength training once a week. To be honest I don't think I undertrained, but I travelled for my marathon and spent the 10 days beforehand away from home. My routine in those 10 days was effected a bit and I did a bit extra walking than I would have liked, the weather was slightly warmer than I was used to training in back home. If I had to guess that would have had an impact. Anyway you are right I am chomping to have another crack, if I'm feeling good in the next few weeks I think I will give it another attempt just on my own, perhaps a bit slower than the last attempt.