As I understand it, they are removing the upstream G.Inp in order to test that scenario.
The testing has seen various situations and since most of those that have been testing are using HH5A and ECI modems, we dont really know whats been going on because none of those modems produce proper stats. We've seen some lines have interleaving removed yet they still must have error correction applied. What really would have been the most informative is for one of the testers on the trials to be using a HG612 usings Asbo f/w then we would have some decent stats.
Now we will have to wait until its rolled out to all cabs and BE has kindly offered to roll back to Asbo f/w once he knows his cab has had the new changes applied. Until then we wont know much for sure. Im very dubious about results coming in from over at places such as the BT forums who are simply saying 'Yes its improved', but when you look closer its improved the latency but theyve not recovered the lost sync... or they dont have true before and after stats to compare with. There's only one HH5A tester that I was likely to believe would be a true representation, but said person is away on holiday atm. We are also not sure whats going on with the HH5A's either, they have had some f/w update and Im not even sure if they like the TPlink have the possibility for a proper modem fix. It would appear there is no scope for upgrade on the ECI's which is why they are making the DLM config changes.
I'm aware theres a lot of ifs and maybes, but I'd much rather say Im unsure rather than blurt out something that later turns out to be false.