Definitely do that if you are applying to multiple programs. I applied to 8 last year and was accepted at 2 (ended up at SIMR! PM me if you want more info). Try to apply to a range of selectivity with regards to the programs - programs that cost money to go to (i.e. BU, UF SSTP, while still awesomely amazing experiences, are generally slightly easier to get into, while programs that pay you tend to be more selective.