Paul is correct (and I loved the humorous preamble). The simple explanation is that you are a healthy distance from the pickups when using the winder on the tuners.
Most of my stuff is Porter-Cable, DeWalt or Bosch, but now that Black & Decker owns Bostich, DeWalt, Porter Cable, and Stanley there's probably cross-pollination going on.
The Makita TD020DSEW is my favorite, I have two of them. At 2300 rpms it's very quick. Sounds too quick but it's also an impact driver and that function kicks in before all but the thinnest strings would break. It's lightweight, charges fast and does the job of string winding better than anything else I've tried. The speed seems frighteningly fast but honestly five minutes with it and you don't want to use anything else. Sadly I don't think they make them anymore, but you can find them on eBay sometimes. The new model is much slower. I use the Dean Markley winder/bit but before they were commercially available I made them by cutting the end off of a string winder and epoxying it onto a screwdriver bit.