I have been using my 3030 for almost 2 years now and I still only use Smooth for the sound.  It is quite good but sometimes it 'balances out' or becomes difficult to get it to repeat consistently. Recently I have been reading about some CTX programs for download and others use Pitch Hold.  I tried it last night and it was just so odd.  The threshold goes to a different sound and pitch, the volume goes to a lower level and I have a hard time hearing the target. After this I tried Normal