I swapped my 10D filter with the Lifepixel one a couple of years ago. You should have seen my wife's face when she walked in the room and I had the camera disassembled on my desk
The hardest part of the whole process was applying the adhesive to the new filter. I had to redo it several times, and cleaning it off of the glass when I messed up was not easy! In the end it all worked out though.