Hello Rotten - nice tutorials!!!
There is just one that I think that you also might want to make or link too!
It's a cleaning the Masters in Tes5edit - as this cannot be done within your mod pack - as the files are part of the game itself.
I have found that by cleaning the masters - it helps in fixing many errors that pop up unexpectedly.
And if I remember correctly dawnguard.esm has to be cleaned twice for some reason.