I still consider an IPC every 6 months with a CFII to be important to
me. In my opinion, if you are the type of instrument pilot who just
pops through a hole every once-in-a-while doing hood work with a friend
is probably ok. However, if you regularly fly actual IMC you probably
want to do an IPC every 6 months (or at least every other one at 12
months).

-Robert, CFI