I think the improvement with the vocal processor began with the introduction of the S series, and I found it very usable with the S-950 with just a slight bit of tuning and tweaking. Yes, you have to watch your timing with the on/off and be careful of overloading and distortion. But, if you're a crooner and don't chew on the mic, it's more than adequate for most performers.

JMO,

Gary cool
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)