I have yet to apply pec to any of my mounts.
If I had the choice I would take Autoguiding over Pec.
Pec is more desireable for extreme Imager after perfect images.....and if this was the case you wouldn't be buying either of these mounts.
HEQ5 would be my preference then the CG5/LXD75 because of the heavier mount.
I didn't know the LXD75 didn't have a guide port.
Frank is using the CG5 mount with a SCT taking over 10minute exposures....a much more difficult task then imaging through the ED80 at 600mm focal length.
So between the 2 go the CG5.
Hope that helps Ken...all the best.
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