I put mine at the end with the modulation, before delay. I figure I want my passer to be delayed, not the other way around. Some advocate modulation in an effects loop, but I run my whole chain straight into the amp.
Phaser first modulation pedal after my dirt pedals. Does anyone here actually use the effects loops on their amps? I always plug the end of the chain straight in. Is it delay that is supposed to work/sound better in the effects loop?