I too am wondering whether to continue subscribing to the mag, Gerba, even though I enjoy the puzzle. As regards the practicalities, I used an enlarged grid to complete the puzzle and then very carefully, right under an Anglepoise, managed to fill in the printed grid for submission without error. My eyesight isn't what it was even 12 months ago and the last thing one needs is a splodge of Tipp-Ex messing up the page.
I shall refrain from wishing a happy birthday to Ghislaine Maxwell but merry Christmas to all on the good ship crosswordsolver.org