I didn't see a thread dedicated to this yet.
How much effect is the new defensive engine tweaks going to have? Should I value my 90/90/90/90 ss significanly more than previously?

That depends whether +/- plays are going to become more frequent, or whether their labelling will just become more plentiful.

I have no idea how to determine which they mean.

Valid point. Any devs reading this care to shed some light on this?

Pretty please??

I'm guessing from the way they wrote it, they've increased the frequency in which +/- plays occur rather than labeling actual plays differently.

I've been keeping a close eye on the +/- plays since I thought it sounded like we'd see +30 for the best fielders and -30 for the worst, but I haven't seen it either way yet.

You'd think it'd be pretty evident right away with guys playing out of position or really great defensive players.

Ya, I'm working on a deal to trade away a really good defensive ss... And I kinda would like to know if he's suddenly going to be more valuable... My initial take was that this update will make defense more valuable, which is great cause I normally field pretty solid defensive teams... But I haven't seen anything to suggest that yet.