
Re: Going to Utah for TL attempt
Arches is a fantastic park. I went there for the last lunar eclipse and I absolutely loved it (see pictures here:
http://www.jfgout.com/Lunar-Eclipse-of-April-2014-Fr/).
Of course, Bryce, Zion, ... also look like great places.
I would recommend staying at one park, spending some time hiking to find the spots that you think are the best. For arches, there are plenty of great spots for sunsets and sunrises. The part called 'The great wall' would be a good candidate for sunrise time lapse as the wall faces East. You could probably time it with the Radian to get the sunset on the wall (the sun would still be under the horizon from your camera viewpoint) and rotate so that you get the actual sunset in the field of view towards the end. Also, the contrast of colors (green from Courthouse Wash / red from the Wall) might be a good one. Plenty of other options in the park for this type of images (Organ/Courthouse towers/...).
If you time it correctly, maybe you can catch a sunset lined up with balanced rock. Could be a cool one.
Of course, Delicate Arch is also a great place for time lapse, especially if you want to shoot the milky way. Will you be there during a time of full moon or new moon? Both have their pros/cons (spectacular moon rise/moon set or dark skies full of stars...).
Again, the other parks probably offer a ton of opportunities (I know only Arches so far...) but in any case, I think that staying in one park and getting the best out of it is better than rushing through all the parks and having only mediocre footage each time (unless you are a super pro and always get perfect footage from the first try).
Oh, and if you do some night time photography, make sure to dress extra warmly. Nights get cold up there, especially when you are not moving a lot, just waiting for the camera to be done...
Enjoy your trip !
jf