Hi all- I'm getting my equipment together, hoping to get started, but have a new issue. I'm using an old Gravermeister which came with the original big long handpiece. I ordered a cheap-o small handpiece to get me started. I rigged up an adapter for the hose, but when I run the machine, the handpiece hammers full time. No foot pedal control at all. I tried adjusting the handpiece, but no matter how I adjust it, it is either on full blast or off, no foot speed control at all. What am I missing? Itching to get started. Thanks for any advice.