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The only thing I don't entirely agree with the other Peter (hope you don't mind!) is that if you make a quite large model with T-Point it can easily be used from night to night if the equipment setup remains the same. And, T-Point will work very well after a drift align with just a small number of recalibration points. I think using T-Point for polar alignment will be very difficult on a mount that doesn't have accurate adjusters.
Peter
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