I found an easy way to adjust the draw in this little device.
I have 3 attys, one worked perfectly, the other 2 would not draw at all if screwed down all the way. Screwing them in partially would improve the draw, but they felt "loose".
Looking at the 2, I noticed the center post was deeper in the atty then my good one. So I took a paperclip and gently pried the center post out a bit. Now I can adjust the draw by how far I screw down the atty and they don't feel "loose".
If you have a hard draw just adjust the center contact on the atty!