Then again, my controller with acrobatics cannot get down to low enough endurance consistantly (without enemies) to test for acrobatics, and unfortunately... as a mind controller... will not be level 28 for quite some time, for me to pick a new power in training room.
Note: For those who may be wondering, the best way i found to test is to activate whatever toggle power is in question, and continue teleporting in place (well, almost in place... put the cursor just left of the endurance bar with an overhead view) until you do not have enough endurance to teleport again. Then slide the cursor to the bar and when the number drops one last time for the last teleport, start the stopwatch and note that number. When your endurance hits the first number in the 90's, stop the timer and note the end number. Divide the amount of endurance recovered by the time passed to find EPM.