Yes, I did replace it this past spring prior to selling my oldest 1DX body when it had reached my normal 3-year lifecycle (purchased from the first batch in late spring 2012). Note that I sent it in for annual maintenance and never had a failure although I was beyond 350K actuations.
The Red Komodo has superior image quality, but the Canon 1D X Mark III is more usable in different productions: Higher max fps at 5.5K. Full frame sensor with an extra 1.3x mode (though not in RAW). You can use both full frame and S35 lenses. No sensor crop in HD 120 fps. I read on another Q&A in this community forum that a white band across the top of the photo means a shutter problem. One answer mentioned a sticky shutter. I talked to the owner of a camera repair shop on Facebook. He said first take out the battery for 24 hours and then try it. He also said the shu p.1 #3 · p.1 #3 · 1dx shutter life. check with cps on how much a shutter replacement is if you're concerned. I've replaced shutters on other bodies and they usually run $175-$300 so that might help in your decision. 400k is average lifespan so unless it's a faulty one, i would think it would last about that amount of actuations. p.1 #1 · p.1 #1 · CPS Scratched my 1DX II Sensor and refuses to replace it at no charge Sent in my 1DX Mark II for a CMS. Before sending it in, I took a test image. 89gZf1. 428 286 437 377 323 371 657 215