let me chime in on the flangers:

most are probably not going to give you the sound you want.  The 80A and AC Flanger I found sound most like a traditional flanger, but neither have a mix parameter.  The mix in HD Edit on the AC flanger does nothing.  To get around that, you can put it in Channel A only, then use the mixer levels to set your mix.  You can pan hard left/right so that the flange is only in the left/right, or pan both to center so that left and right are affected.

As for settings, it's ABSOLUTELY CRITICAL to understand how the effect works and what you are controlling, particular the manual parameter.

A flanger works by splitting a signal in half, and introducing a delay to one of them, then mixing them back together.  This creates a comb filter, where the phase coherency becomes out-of-phase to differing degrees for different frequencies.  The delay time is varied using an LFO, almost always with adjustable time and range/width.

Manual is deceptive.  It gives you manual control of the sweep, so you could set width/range to 0%, then assign manual to the expression pedal to manually create the sweep sound.  But it additionally has an effect on tone when using non-0% width/range settings.  Think of it as the baseline delay.  So if your range is -/+ 100ms, you need to set manual to be at least 100ms, or as the delay reaches its lowest delay setting, it will actually bypass the original signal.  Obviously this is impossible on a real analog flanger.  But somehow it DOES happen on the Pod's flangers.  The result is at the end of the swoosh tone, you hear like a wobble, or doubled swoosh.  It is very unappealing, IMO.  I try to keep my Manual control around 50%, but if you use higher Width/Range settings, you may want to go even higher.  Setting too high; however, will change the flange tone, as you are changing which frequencies the comb filter will effect.  Higher settings will likely result in greater interference and a more aggressive effect, although possibly less-defined.

There's also usually a feedback/regen parameter.  This feeds the delayed signal back into split signal before it is delayed.  It's kind of like putting a reverb on it.  The effect is to strengthen the flanger effect and make it sound more processed, spreading it across more of the frequency spectrum.  I find you need to have this at least around 30% to get a typical flanger tone.  You can set it quite high if you want, but you will get a more and more "processed" sound.  I don't like to set it too high.

Finally, I prefer the AC Flanger.  It seems the most like a traditional flanger.  The 80A is also nice, but it can sound a bit artificial.  Both of these have an effect on the freuquency response of the signal.  So I often EQ my signal after the flanger to make it more transparent.  I find they tend to add a boost in the punch range around 250 HZ.  So I use a parametric EQ to dial that back.