front brakes rock hard?

[Bretty]

I would guess some of calipers are seized with only one or two moving and hardly retracting, hence the lack of movement in the lever. Maybe you've just managed to bleed the system, but I'd be tempted to get a can of brake cleaner, pop out the pads and give the calipers the toothbrush treatment get then moving and exercised. It's easy enough to do and something I've started doing annually.