I am sort of waffling about whether to do the 40P challenge or to focus that part of my practice time on sight reading. There are benefits to both — and as @Nightowl says, the goal is quantity over quality, which fits with either approach …
But I’m really grateful that this has been discussed here. I read about the 40P challenge years ago at PW but had forgotten about it. But now it’s really gotten me thinking about my approach and also I think I’m in a better position (in terms of how I practice etc.) to implement something like this (whether I do 40P or sight reading)
I have a few more days to decide.