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Most guiders will need autodarks to remove hot pixels to be useful in guiding. Otherwise you will find that the software often picks a hot pixel instead of the guide star.
With Maxim I believe you can record a dark and have it used in guiding doing an auto dark subtract using this saved dark. You can't do that with CCDsoft. So you would need to do that as Lodestar can have hot pixels/artifacts that need to be dark subtracted out to be useful.
You can also try subframing the image to pick a clean part of the image to guide on with a decent guide star.
STi is best as it has a shutter to allow dark subtractions in CCDsoft, no artifacts, very clean images.
I think its one of the best autoguiding cam out there at present. ST402ME is more sensitive and is cooled reducing noise and so doesn't need autodarks and is another excellent guide camera. It also has a shutter for darks if needed.
SBIG is the leader in autoguiding technology by far.
Greg.
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