matson, my Griso behaved the same way, lots of snatch at low speed and throttle position. Removing the slack from the throttle cables helped somewhat, but I ended up installing Todd's ECU and PC-V/AT and it eliminated it completely. The bike is smooth throughout, doesn't stumble or snatch anywhere, at least with my somewhat ordinary riding skills anyway. The only downside is fuel consumption has gone up, but I will be working on this with Todd's help ASAP.