Awhile back I tried kludging together a glute-ham developer. The experiment was a failure, but I didn't realize how much of a failure until buying a real GHD. Night and day, even buying the cheapest one I could find, this Yukon GHD. It's quite nice for the price. The only problem I had was with the footplates, which are too small and too far away to fully engage. Here is my fix:
The pieces are made of 3/4" plywood scraps, and the carriage bolts go on either side of the footplate (so you don't have to drill through it). There are washers in all the obvious places, but also between the front and back plywood pieces that butt up against the edges of the footplate, preventing side-to-side motion. These are perhaps unnecessary, as you can really clamp these on pretty tight.
This modification makes a HUGE difference in the feel of the machine. The increased surface area accommodates my size 12.5 feet nicely, and the added thickness is great too, locking my feet in much better. I can use the GHD much more effectively now than before. I can't imagining owning one of these machines and NOT making this fix.
