SMMH users, does your pedal only loop one layer within the loop? So say, if you record a percussive chukka chukka loop then try to put chords on top, it deletes the chuks underneath during the overdubbing? If it does (like mine), it's not overdubbing as the manual suggests. If it's not just my unit, it's a shame because it's a great digital delay. The reverb is more convincing than the Cathedral and HGP to my ears and EHX must have been concerned about DMM sales when they limited the delay + mod time to just over 300ms. Can anyone confirm the looper issue?