About 5 days ago I was talking to one of my friends (who knows a LOT about G-Shocks) and I asked him if I could replace my DW-5600E's stiff, uncomfortable strap with a 5600C's. He told me it was impossible as the 5600E had 16 mm strap while the 5600C had an 18 mm strap. And being the kind of guy I am, the kind who won't believe something until he tries it himself, I went on eBay and bought myself a vintage 5600C strap. After like half an hour of trimming, fitting, and making the straps perfect, I took the straps off my 5600E and started. Finally after like 45 minutes of trying to squeeze the pins in the small hole, I did it. I now have a 5600E with a 5600C strap. I'm very proud of myself, although I know to some of you this is nothing in comparison to some of the other things I've seen people do. But I'm happy with it as this is my first attempt at modifying a G-Shock. The strap is so flexible, soft, and comfortable in comparison to the 5600E's original strap. In the picture you can see the word "Illuminator" On the face of the watch to prove it's not a 5600C. And you can see the ridges in the strap which prove that I changed the strap. Anyone else ever tried, and succeeded in doing this? I'd love to hear about it.