You absolutely have that right... I hope the Spark rep told you that we (Spark) have no way to influence Chorus investment decisions apart from highlighting where we notice customers are having issues. In your case we wouldn't even think about escalating your case to Chorus or asking them to upgrade the card. You're already getting exceptional xDSL speeds.
Cheers - N
I didn't talk with Spark, since it wasn't a fault/issue. I simply made an enquiry with Chorus if card swap was possible - but despite asking me for all my connection information - their response was:
I've engaged our senior team, and at this stage it looks like we won't be adjusting the VDSL equipment as we're busy with the UFB upgrade. You can still have a chat with your provider about improving connection speeds - asking to speak with a Tier 1 or Tier 2 technician could set up a good channel for you to effectively discuss this.
I just talked to a mate now who is a Chorus contractor who was good enough to inform me that the cards can't be mixed in the ISAM - which I would have been fine with as an answer.