Last year during May we went to DHS when it closed at 6 PM so we could get in a few rides and one of them was TSM. At about 4 PM, the wait was about 40 min or so. So, it wasn't too bad but still that is a long wait.
This year, first thing we are going to get FP for the ride and maybe, depending on the time, get into the Standby line so we could, perhaps, ride it twice.
All depending on the crowd level...