I’ve just done the self mod and opted to leave the LP1 in place with no replacement for the LP2. The mod appears to have worked functionally but I have issues with focus.
I also have the 70-300mm L and tried to focus this last night. It appears to move through the point of best focus (so I don’t think I have an infinity issue) but the best focus is still pretty fuzzy compared to my unmodded body.
I’ve ordered a CLS CCD clip in filter to see whether that sorts / improves it. Other than that I guess getting the shims checked or adjusted will be my option. I could go with the Baader replacement glass but I don’t want to throw more money at it if that’s still going to leave me out of focus...
Any thoughts?