[Loadstone] Correction re observations

[Aedan O'Meara]

Hi Shawn,
When I put up the last note to the list it was midnight here and I
should have referred to "Approach time" rather than "approach speed". My
apologies. But I was so impressed with the difference in behaviour that
this adjustment made that I wanted to share it with the list. 
Maybe you could read the note again in the light of this as I had
several questions that I would like the answer to. 
Kind regards
Aedan.