Zen Slow down

Do Zen speeds still drop at peak times? I left Zen ADSLMax in 2011 to transfer to Vivaciti for an ADSL2+ LLU connection (Obit now Daisy) through TalkTalk tails avoiding the BT profile system.

I now find my supplier has migrated me away from Daisy to Enta on BT tails, thus back on the BT profile system. I know Zen also uses BT tails and profiling but does anyone experience peak slowdowns like I did especially during term time?

I've never seen a slow down really, and I'm quite astute at checking my throughtput regularly - a bit of OCD!

The exception being when BT ran out of capacity at the exchange just before the 21CN upgrade.

Cheers,
AP