I have a Takahahsi EM-200 Temma 2 mount and have been using SkySafari or Cartes du Ciel for GoTo control. However, both of these applications only support a simple one-star alignment, which I have found to be *very* sensitive to accurate polar alignment. Even after doing a plate solved PA, I find that large slews across the sky fail to go-to accurately at medium to high power - accuracy is probably only about 1º which might be just about OK at low power in a C8, but not at >150x.
So I'm looking for options for multi-star goto alignment (at least 2 stars!), which I hope would improve goto accuracy.
I'm aware of an iPad application called Astromist, but this looks a little bit old-fashioned and I'm concerned that it may not be supported long-term. I mostly use a laptop, so a PC or Mac solution might be preferable to an iPad app. However, it isn't very expensive, so might be a reasonable option even if I only use it for alignment.
Does anyone know of any other planetarium software that support a multi-point goto alignment model with the EM-200? I have a feeling that the The Sky X can do this, but I'm not sure whether it requires the (relatively expensive) T-Point add-on.
To EM-200 owners, do you also find that the go-to accuracy with one-star alignment is not that great compared to other mounts that use multi-star alignment?