Yea you got sucked into the vortex TT. As far as the tool to use I'm assuming you are talking about a scraper. Some things about using a scraper to remember is that the should always have a slight downward angle when contacting the wood. Also for better control, hold the tool in your hand up near the ferrule and then let the handle rest under your forearm. This extends your leverage by bridging the weak point, your wrist.
As far as the center nubbin, that's why many people drill out the center to the finished depth. You can use the scraper by starting the tool just below the nubbin and raising the cutting edge straight up. A few light passes should get rid of it.
Hope this helps and welcome to the abyss.