[PD] audio glitches using arrays?

[evan raskob [PD]]

hello pd gurus,

one big issue i'm having is that you can't load audio files into arrays 
without having the whole system pause for the new file to load.  In 
fact, any time I change an array, the whole system pauses.  is that 
because of lag, or because the arrays aren't multi-threaded? the 
writesf~ object seamlessly writes sound files in the background - why 
can't i load/record them into arrays just as seamlessly?  (I use OSX 
and pd-0.36)

thanks,
-evan raskob