SNRM values before & after DLM re-synch's:
My line, PN 40/10 service:
DS, 3.3 to 2.8 dB
US, 6.2 to 2.9 dB
Son's line, BT 80/20 service:
DS, 3.2 to 2.5 dB
US, 5.5 to 4.8 dB
Daughters line, PN 40/10 service:
DS, 8.3 to 8.3 db (no change)
US, 5.6 to 4.8 dB
My line is the longest of the 3 and showed the biggest impact, ie., increase of close to 2 Mbps US synch speed.