Interesting OP. I am struggling with the same decision myself. However, I have a front fork that will lock out the suspension.

I keep locking it out, not really liking it, and going back to the working suspension. I'm about to give up on the idea of a rigid fork. I really don't ride any off-road, other than greenways/hard pack. I do have a few blocks of my commute that is old concrete with lots of places coming apart and bad expansion joints.

I have the adjustment cranked up so the fork is not mushy. It's pretty firm, but it still takes a bit of the chop out of the bumps and cracks. Overall, it just seems to smooth out the ride.

Let us know how you like the swap.