Kas,

So, I went ahead and updated to 1.2.1.3 last night.  I noticed the error with .loopRec is gone.  However, my issue persists.  Apparently I misunderstand something.  Here is a portion of my code:

    if (func == 1) {
        //looper.clear();                //Causes a RT error with Jack
        //0 => looper.loopRec;             //Does nothing
        0 => looper.play;            //Record
        0::ms => looper.recPos;
        <<<"Recording">>>;
        1 => looper.record;
        now => start;
    }
    if (func == 2) {                //Playback Loop Continuously
        0 => looper.record;
        now - start => looper.loopEnd;
        0::ms => looper.playPos;
        <<<"Playing">>>;   
        1 => looper.play;
    }
    if (func == 6) {                //Begin Overdub   
        0.8 => looper.feedback;
        looper.playPos() => looper.recPos;
        1 => looper.record;
    }
    if (func == 7) {                //End Overdub
        0 => looper.record;
    }

Basically, everything works fine so long as I don't overdub.  If I call the first portion then the second, I get a loop.  If I recall the first, it overwrites the original loop and I get another loop... awesome.  ie (sporking some other function):
1 => func;
wait
2 => func;
wait
1 => func;
wait
2 => func;

Now, as soon as I go for the overdub, all is well until I try and start from the beginning.
1 => func;
wait
2=> func;
wait
6=> func;
wait
7=>func;
wait
1=>func; //Here I end up with things overdubbing again even if I set 0=>looper.loopRec;

It seems that loop recording begins after I set a feedback level (I'm cool with that), but how do I get out of loopRec mode if not with the commented out line?  Also, if I call .clear() or call .duration, I get a realtime error from Jack and it shuts down.  I'm sure I'm missing something.  Could you point me in the right direction?

Much thanks,
Matt