Indeed
NS, you are correct.
G.INP hasn't magically reduced Line & Signal attenuation or massively improved SNRM. Hence not that much has changed (yet).
My connection's sync speeds have been 'banded' at 4999 Kbps US & 22399 Kbps DS for quite some time.
That may/may not now change over the next few days.
There seems to be some
slight scope for a US sync speed improvement, but not for DS
as can be seen in the attached.
I'll probably wait until this evening (when I have at least 12 hours worth of G.INP stats to consider) before I post much in the way of detailed stats/graphs etc.