Yes, I'd like to see comparative statistics for Malt layout, too. It's a well thought out and properly "designed" layout. I wasn't referring to a previous post with my "generalisations" comment. Simply that as a generalisation, Dvorak does have stronger hand alternation than the "common" alternative layouts, particularly those designed for standard horizontally staggered physical layouts (QWERTY, Colemak, Workman, etc.)
In September 1977 Lilian Malt presented a paper to the conference of PIRA (Printing Industry Research Association).
https://www.smitherspira.com/About-us.aspxgiving her findings from her research.
Since this was 1977, there were really only three keyboard distributions in use, QWERTY, Dvorak and Maltron. Thus Malt was obviously unable to compare newer layouts, but her paper has some interesting figures.
On page 6,
http://www.maltron.com/media/lillian_kditee_006.pdfshe discusses at some length the factors taken into account when designing a keyboard distribution.
On page 7 she presents tabulated results for her research
http://www.maltron.com/media/lillian_kditee_007.pdfincluding, towards the bottom (Table 9) "Balance of keystrokes to each hand. Percentage of all language."
This perhaps should go some way to fulfilling your desire to include Malt's distribution in any discussion.
On page 2
http://www.maltron.com/media/lillian_kditee_002.pdfshe gives a selection of areas of inefficiencies or "bottlenecks" in the use of keyboards.
From my own point of view, as a court reporter, I observe that she quotes a figure of 15 wpm for the production of typescript from handwritten shorthand notes. In 1979 I started learning Pitman's pen writing, but at the same time I bought my first computer, and as I learned about it, I decided that the computer had the potential to eliminate the "middle man" and I would be able to enter abbreviations on the keyboard and have instant transcription into a first draft, subject to correction (which would have to be done whether from handwriting or keyboard.) I dropped the Pitman's and went on to develop my own shorthand. About 6 years ago I took an entire month's work, reduced it to straight text (no formatting, page breaks etc) and calculated that based upon an 8 hour day, and a 5 day week, with NO breaks of any sort, I was achieving 23 wpm. And given that I was using the finished (ie proof read and corrected) copy it was virtually 100% accurate.
As I say, this was only for myself, but it certainly gives me an absolute conviction that I could NEVER have achieved that figure with any other keyboard than a Maltron. (It should be noted that although I used shorthand, this was totally unrelated to which key distribution I used, as it will work on ANY keyboard.)
Joe