Hello John,
Thanks for your comments.
In a previous blog, we mentioned our plans to publish conveyancers' success rates in submitting applications to us without error: https://hmlandregistry.blog.gov.uk/2017/12/28/opening-our-conveyancer-data
These plans still stand and we will communicate more about this in the coming months.
We will continue to open up our data to benefit the public that we serve.
Kind regards,
Frank