Star Tours is still the hot ticket ride at DL. On Monday, the stand-by line was running well over an hour at several times during the day.
My advice is to ride it first thing at 7:00 a.m. during your Magic Morning. They do not open the Fast Pass machines until the park opens at 8:00 a.m. What works for us is to ride it first thing, then stay in the Tomorrowland area, riding Space and Buzz. Just before 8:00, get in line for Star Tours Fast Passes. They will let people access the machines right at 8:00. Your return time should be fairly early, and you will probably have the opportunity to get more Fast Passes for Star Tours later in the day. On our last two 3-day trips, we were able to ride it two or three times each day.