As Ixel says above. Product change should trigger what I've started to call a system level DLM reset.
'System level' resets remove previous INP/g.INP and revert to INP=3. g.INP should follow shortly afterwards.
Whilst it may clear INP and re-tx... it doesn't always clear banded profiles.
* Whilst I have used the term system level reset (no idea what its really called), but it appears to work by clearing out all the ILQ caution counters so they go back to zero.
This is different to a full DLM reset performed by and Openreach engineer which currently resets the line as if it were brand new - including the up to 48hrs of being on Open profile.