Hi Frank,
and thanks for all that! I'll make sure it goes into every tutorial I ever write ever again ;-)
But actually, what I was referring to was this problem of--for example--having a feedback system where the send~ is inside a subpatch and the receive~ is outside of it. IIRC, you have to be very careful about whether you create the send~ subpatch first or the receive~ first. One way gave me a DSP loop and the other way didn't, and I couldn't figure out why it would work like that at all. Maybe I'll have to sit down and make an example of what I mean, or you could try it for yourself and see. This problem made me totally crazy while trying to make a feedback-modulated AM/FM synth several months ago.
best, d.