Yes, a flattener would give better images but it's VERY expensive.
Focusing every 2 weeks is just lazy, but it doesn't make much difference, and with megadata, decon/sharpening makes small changes irrelavent anyway.
RCOS RCs are over engineered and expensive, that's why they went broke (I got mine S/H). Holding focus that well is uneccessary and not required for the amature market.
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