Hi!
I searched for some months the right flanger for my needs. I tried the Line 6 Liqua Flange (too complex), the Boss BF2 and the Ibanez FL9. The sound was good but I didn’t like the metallic noise coming from them.
I gave a chance to this Arion (known for the great chorus SCH-1) and it seems to be exactly what I was looking for! No metallic sound, no volume drop (the reason I didn’t go for an Eletric Mistress the place it takes), beautiful sound at low rate settings but also fast rate ones.