I did the first of the spinning output tests yesterday, using the Great Wheel. I had settled on trying for half an hour spinning for each test, and that was quite enough for untrained me on the Great Wheel.
To have the material as alike as possible I will be using industrially prepared Merino top for all the tests (at least four of them, one with each spinning implement). That is, naturally, nothing really spinn-able for the Great One, so I transformed a portion of it into rolags for long-draw first, using my hand-cards.
And the result of half an hour spinning were 64.5 m of yarn (which would add up to 129 m per hour). I aimed for rather thin yarn (to match what I will be doing with the other tools) and for rather high twist (since that is historically more correct than low twist), and once the spinning tests are all done, I plan on plying each sample to have them in a more stable condition - I want to take them with me for demonstrations.
So. When you are reading this, please keep in mind that they are all very, very squishy figures - it's just one spinner, my tools and their quality are unknown to you as is my proficiency with each tool, and you only have my word that the wheel is functioning quite well and that I have not had much practice at all yet with the Great Wheel. (All of which, by the way, are reasons this post is not labeled Experimental Archaeology!)