Proper sharpening of a slick

[Up North In the Woods]

Newbie here. First time posting on the forum.

I've got some acreage in Northern Minnesota that I am building a small timber frame cabin on this summer. (similar to the one in Will Beemer's book).  I'm getting everything ready to get started with the joinery in the next couple of weeks, and now I'm at the point of tuning up my tools.  I've got a 3-1/2" slick that I picked up a while back, and I've started restoring and sharpening it. When I was flattening the backside, I noticed that there is a crown of about 1/32 that followed the centerline from the edge almost all the way up to the socket. 

So my question is: Is that crown supposed to be there? (I don't think it is)

If it's not, is it better to remove all that hardened material of the crowned area, or could I put it in an arbor press on a v-block to bend it close to flat, then use the usual flattening and polishing methods from there?  I don't have the tools or skills to mess with heating it up to bend it, so any bending would be done cold. Would that risk cracking the hard laminated steel?

[Dave Shepard]

Yes, the back has sweep. There is almost nothing in a woodworker/timber framers tool box that can be sharpened by a machine shop. And machinests absolutely hate that.