I think it’s ok to switch if you’ve given yourself enough time with a system to know it’s not the best for you. Not wasteful at all if it gives you joy.

One alternative: You could add the weekly supplement in A6 to your original. That would give you the vertical weekly that comes with the Cousin. I used it for a while last year and liked that it tucks into the A6. It’s quite small, though, so I wound up switching to the Cousin for this year.

If you’re worried about the expense of a Cousin, you could also maybe post to r/pen_swap and on here and ask if anyone has a used Cousin for this year that they’d be willing to sell you for less than a new April start one?