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Gday Patti
I'm not exactly sure how the different Meades work, but they only have 8bit CPUs, ie are relatively slow, computation wise
Hence i assume they they use a set time delta, and then estimate where the sat will be, and then figure out how fast to go to get there, ie leapfrogging.
Sattracker utilises inbuilt slewing functions where you can get the Meade scope to slew at user defined speeds on each axis independently.
Hence it does all the calcs and just tells the scope to slew accordingly.
This gives essentially "smooth" slewing, but with an 80mm ETX its all moot as the FOV is so large, it wont be noticable.
Andrew
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