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Hi Jeff,
Thanks for the observations.
I thought that the screws would be easier to adjust from the top as there is no danger of grazing my knuckles on the concrete if I slip up.
The M16 screws, not M20 as I wrote before, can support several tonnes weight and I think this must be the lightest 16" telescope in the world.
I even considered rounding the ends of the screws to give them a bit more of a bite on the concrete, but we don't get too many earth tremors here.
Another reason for having the screws as they are, is to make it harder for the rainwater to get into the threads, which are loaded with grease by the way.
And lastly, I think my toes suffered less damage over the years by not having the screw threads poking out on the top. I'm sure I would've had to implement some toe protectors.
Any comments or suggestions are welcome.
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