asynchronous loops?

[Jeff Evans <jeff@sccadv.com>]

Thanks for turning me on to loopers delight, Ted!

I'd like to buy the perfect looping device, and it looks like the 
Gibson EDP makes sense for me with it's 198 seconds of memory time and 
up to 9 loops and whatnot, but I'm still looking for an answer to this 
question - and I'm a newbie (to looping without multitracking) so 
please bear with it's silliness:
Once I have a loop (let's say 30 seconds), can I add new loops that 
cycle independently (say 23.5s, and 41.2s) thereby creating an abstract 
polyrhythm? Or will the 23.5s loop have to get 6.5s added to it to to 
sync with the original 30s one?

I'm half expecting (and really hoping) that someone will tell me that I 
can do either if I set up the program right.

Thanks,
Jeff Evans