I was lucky enough to find a Jeff Galloway seminar in January, 20 minutes away from where I live. It was a smallish group so there were lots of specific to individual questions. There has been a change in the walk break length to no more than 30 seconds that I wasn’t aware of. There are also new run/walk ratios for specific paces he gave us and I think are also listed on his website.
I also found out I was running long runs too fast, apparently a common problem.

Since you can’t run a long run too slow, he recommended adjusting my walk/run ratios to slow down. I made his suggested changes with my new marathon training.
Today began week 3 and I’m actually starting to enjoy it. Since my maintenance runs are so short (warm up, 30 minute run, cool down), I’ve started treating the second mile as a “Magic Mile” and really pushing for speed. I’ve dropped a minute off my 1 mile pace so far! My heart rate is 90% in the “build fitness” instead of the “intense workout” zone.
I take my fastest 1 mile time for the week and run it through the “Magic Mile” calculations to get my long run pace. I’ll match that pace to Jeff’s new recommendations for run/walk times and I have my long run interval times. I normally use 30/30 seconds but for the long run I dropped to 10 sec run/ 30 sec walk. So far I’ve finished each run feeling great. I just hope when those long run miles increase I still fee the same!
Sorry for being long winded and hope everyone is healthy and getting some socially distant outside time!