Ill be honest here, this is one of the best guides this little mac board has seen in awhile. and the fact you mentioned the fact you can dash cancel into a p pivot (forward pivot, i call it momentum pivot) is proof of the knowledge and time put into the guide. the only problem i have is the fact you stated little mac has nothing safe on shield. this is false, and i have done extensive testing to prove that little mac indeed does have safe moves on shield IF SPACED. with the exception of megamans OoS Bair (which must be frame perfect and aimed perfectly) and olimars shield grab (which changes based on the pikiman used), little mac has a safe move on shield against every character in the cast. Dtilt, backside of Utilt are safe on the whole cast, and jab/ftilt/DaFsmash on some characters.
I don't exactly consider moves safe if they're perfectly spaced, plus even Sol told me this. I'll be sure to include that once it's finished.