given that chorus are dynamically setting profiles, is there any reason that there isn't 12a/12b as well as 17a/8b?  it seems to be that it'd go a way with reaching better speeds for a lot of users.

even better if they can stop limiting upload speeds so aggressively.  so something like 17a for short lines, 12a(12b?) for medium, 8b for long.

unfortunately because i'm on 8b i can't see what snr is - but it's staying high right to the end of 8b with lowered transmit power like 17a/12a.  (well 42db, high enough..) so i figure it should go at least close to a significant drop off?  and it's not much higher at adsl frequencies than that - jumping up just before adsl frequencies are finishing... (tone 509)


12a wouldn't improve download speeds so much as improving upload speeds.  which means that users in areas that don't get fibre anytime soon could get 20 megabit up or such easily if chorus uncapped.