For the record, my clarity is better than
and different to that blip page image and was originally blurred rather than overlapped. I think this is because the opposing eye softened the secondary image by me I never really saw double lettering - only the blip page and the rest of the text blurred.
However I suggest. Start from where you are at and use that rather than trying to achieve something that may never be ideal for you.
Blurred was great, the clarity is no big deal it's just the experience that the muscles are working... It doesn't always have that clarity either however books come together with the same ease anyway so I just take it as it comes.
Alex