Vintage Simmons Drums (UK) Users Group

I have an SDS 1000 and an SDS 8 controller.  When I use the SDS 8 
all is perfect, I get sensitivity from the pads, great sounds, etc.  
If I plug in the SDS 1000 controller I have to crank the sensitivity 
all the way up and still wack the drums pretty hard to get a decent 
trigger.  I love the sounds of the SDS 1000 and would like to use 
it.  Any ideas on a solution?

Thanks