Here are some links to what I was able to find:
DiskBench3 Measurements - 20 Apr 1986 9:45 pm
Re: Information Request---Haba Systems' HabaDisk - 21 Dec 1984 5:04 pm
Double Sided/Single Sided disk drive information request - 24 Dec 1984 6:10 pm
Habadisk - 10 Jan 1985 11:03 pm
HabaDisk and the new systems... - 03 Jul 1986 12:11 pm
Looks like more questions than answers, but there is some useful info. One of the things about Usenet in the old days is that people were much more likely to mail responses to the poster rather than followup to the thread, meaning that we've got hundreds of threads asking a question, but the response(s) have been lost to the ages.
DiskBench3 Measurements - 20 Apr 1986 9:45 pm
Re: Information Request---Haba Systems' HabaDisk - 21 Dec 1984 5:04 pm
Double Sided/Single Sided disk drive information request - 24 Dec 1984 6:10 pm
Habadisk - 10 Jan 1985 11:03 pm
HabaDisk and the new systems... - 03 Jul 1986 12:11 pm
Looks like more questions than answers, but there is some useful info. One of the things about Usenet in the old days is that people were much more likely to mail responses to the poster rather than followup to the thread, meaning that we've got hundreds of threads asking a question, but the response(s) have been lost to the ages.