I'm only interested in keeping my base edges free of nicks and burrs after tuning the side edges and after hitting some unexpected nasties while skiing. I'm not going to be resetting any base edge angles. Do I need a base edge bevel guide or is keeping the bases smooth with the below recommended technique sufficient? Thanks!
You don't use a bevel tool to take the hanging burr created by sharpening your side edge.
Use any arkansas stone (they are really cheap) hold your ski in a vise or in your hand so the edge you are working on is at the top. With the base away from you place the stone flat against the base edge the stone very slightly above the side edge. Use your thumb as a guide on the side wall or side cap of the ski and with medium presuure run the stone against the base edge making sure it is in contact with the base edge. I use an overlapping bit of a back and forth motion. You can hear the stone where the burr is being removed. it is much rougher sounding. Just make sure you don't have it up & over the side edge. This will not effect your base bevel. Just in case I missed a bit of the hanging burr and need a little additional removal on the hill, I keep one of these stones in my jacket pocket at all times,
any of these will work. the $6.00 stone works just fine for this.