Hello All, Could someone please explain this concept to me ?? I've done a number of searches and have not been able to find a good explanation for ME. What does it mean to have a 4 stage, 6 stage, or 12 stage phaser and how does it apply to guitar effect pedals as I haven't seen those terms in advertisements for phase shifters. Phasers I'm considering: Red Witch Deluxe Moon Phaser Moogerfooger HBE Psilocybe EH Small Stone I'm really mainly interested in the phase shifter aspect, as I already have a great vibe and tremolo. Thanks Everyone !