You'll have to forgive my ignorance on reading the MDWS graphs, as you've probably noticed I don't actually use this incredibly good bit of kit.
So, from what I can see you're speed is the same but G.INP appears to still be active even after the migrate has gone through ? As far as I'm aware, this function is removed by DLM upon receipt of a reset request, but is usually re-applied with 2-3 days thereafter ??
Which leaves me wondering if all that has happened is your 40Meg profile was just migrated 'as is' to the 55Meg product ?? May I ask what it is that shows you a reset has been carried out, please ?? Intriguing.