i can't speak about those programs specifically, but i did an away in aug-sept with no problem. (of course, i started talking to the program in january) make sure the program knows you are going to apply and find out exactly what day they are taking apps and submit (by fax if possible) that day, as it is usually first-come, first-served. depending on app fees (some have a fee for each block you apply for) i would apply to the 2 or 3 programs you want for all of the times you have available, then cancel the extras. but if you do this MAKE SURE YOU CANCEL. it's crappy to hold those extra spots. good luck
cheers.
firegirl