I just now got a response from RHS via E-mail regarding my question at the start of this thread:
"Thank you for your Email and apologies for the delay in my reply.
The publication on the benchmarking study using DOPlify was submitted for publication in January this year, so we are expecting to see it soon. I would be happy to forward the reference to you when it becomes available.
In the meantime, the data has been presented at a conference, so there is nothing that we can post onto our website on the specifics of the study. To give you an indication of the study design though, please refer to the publication below by the same research group.
https://biblio.ugent.be/publication/8511143/file/8511144.pdf
They have developed a standardised single cell WGA benchmarking study design and bioinformatics pipeline to specifically determine the accuracy of the various kits for the detection of copy number variations of different size. Whilst they do not perform large numbers of tests for each kit, their study design has been validated across the available kits and they are confident in their findings, as are we. The study was done with no assistance or input from RHS."