Doepfer

I really need a nice sounding flanger, that fits in my Doepfer 
racks. 
I checked the A.Sys RS120 Comb Filter, but I do not understand how 
you can select between a flanger effect, and a phaser effect.
Correct me if I am wrong, but a phaser effect is sweeping throughs 
in the frequency spectrum and a flanger effect is sweeping peaks, 
right? 
How on earth can you select between the two (on the RS120) when you 
only have a delay time parameter to mess about and a resonance 
setting?
What do you wise people suggest for a flanger module?

I am trying to get some more "unusual" sounds from my system and I 
ordered the A-107 Morphing Filter, the A-196 PLL along with another 
A-111 VCO.
Do I really need the A-163 VC Freq Divider to get the best out of 
the A-196? Can I not use the A-115 Audio divider? I mean at the end 
of the day all the A-115 does is divide the frequency of the 
incoming signal, no?

Sorry for my many and potentially ignorant questions :-)


Peace out.