wavetable questions/problems

Hey there,

Trying to make a loop destroyer.

Am needing to take a buffer's contents, split it into 16 pieces and have each of those pieces accessible to be played one after another , but also allow me to choose/seek to different pieces, play those pieces forward and reverse, etc.. I tried playing the buffer contents using metro/groove~ to define loop start/end segments in series, but this is slow because of msp's cycle time, etc.

I think i have to do this with a 'wavetable' and manipulating signals, but i have spent 3 hours with friends and manuals and still don't understand how to manipulate signals to get what i'm looking for. Anyone point me in the direction of some clues?

Thanks,
n00d