I got it worked out. I bought a $4 volume switch, a $3 audio cable and a $2 audio jack from Radioshack to make a control for the hihat. When plugged into my TD-20 hihat control it works to make a half open hi hat when dialed in just right and I don't need a pedal. I set one trigger for #42 closed hat and a different trigger for #46 open and it plays half open instead of fully open and closes when I hit #42. yay! I can be free from pedals now.