The prefered DLM for my line would be ASSAI as BT's DLM is to busy with the SNRm thats ok for users with a steady SNRm but it's not my fault the RFI is causing this would rather be capped and have the same functionality as EU's who have a stable SNRm.
I dunno NS. Personally I prefer BT's DLM to SKy's. My parent's line suffers from occasional bouts of SHINE and possibly PEIN which Ive never been able to trace.
The result on Sky was anything between 1.6 to a little over 2Mb. It also applied interleaving at a massive depth and despite numerous phone calls the least latency was something stupid like 56ms to BBC and on occasions was nearing 98ms. Because the system worked backwards you have to prove your line is stable, before it will move up to the next step. Dads line couldn't manage the stability level to get up to the next step.
In the end he moved away from Sky in March this year because he was sick of the line performance, he couldnt stream anything and was sick of trying to speak to Sky about it. The line sync'd straight away at around 8Mb. I thought the BT DLM would get him quite soon, but as it turned out it left him alone for a couple of months before applying interleaving. Last time I looked he's syncing at about 7Mb with Interleaving, latency to the BBC is around 24ms.
When I say it works backwards, look at it this way, currently you are struggling to get off Interleaving, but the BT DLM only applied it because you'd hit the threshold which deemed your line as unstable. With dads line on Sky, it was never even given the opportunity to at least try it and see.