A500 pads not responsive

I tried doing several searches but didn't find anything.

Just got a new A500 Pro and got it all setup.  The pads for finger drumming are really unresponsive.  I've tried most of the sensitivity settings for keys/pads, but they don't fix the problem.  If I hit a pad several times in a row it just misses hits.  Also it jumps from very low velocity to full velocity with virtually nothing in between.   When I play the same drum on the keyboard it keeps up no problem and full range of velocity is there.  Is there something I'm missing or possibly just a defective set of pads?

Thanks Shambler!  I worked with tech support from the place I bought it, and they transfered me to Roland tech support.  Both concluded the same.  I'm going to swap it out for another one.  The knobs, sliders and keys work great and I'm really enjoying using it.

Could you have made them too sensitive?

I don't think it's a matter of too sensitive.  None of the velocity curves work any better or worse.  Tap 4 times, and the light comes on 4 times, but you get 1 or maybe 2 drum hits.

I wish I had somewhere near by to try one in a store.  Nearest GC is 70 miles from here.  I guess I'll have to go on a road trip.

This could be a latency issue - i've found that if latency is set too high or too low, you can get into trouble.
Just a suggestion.