i want to know is there a way i could have my psp at cfw 3.52-4 and load 3.71 m33 -2 and any future sony fw

so can i load 3.71 sony fw then if i want 3.71m33-2 at a differant time

all using psp at cfw 3.52-4 m33
and a pandora battery cause i don't want to flash 3.71 m33 cause of the risk of bricking