kenny, chuckm up in a drill if you try it with the hand helds...I also use the disc but remember the days of the handheld misery till a buddy showed me the drill trick. Works slick! Only other place I've seen it is on Garys vid. Wish 3 rivers still sold the extensions for the true center. It needed some tweaking but overall was a very good tool....setup was an issue and most didnt have the patience to get things right before the blades dulled.....in comes the drill to the rescue.
Stump, cut a very slight shoulder in that taper and it'll be perfectly true to the shaft. The benefit is perfect alignment (as long as the arrow is straight), and it looks clean and professionally done.
It will also show you how poorly most arrow shafts are turned! I think some of its due to moisture, swelling and contracting slightly leaving shafts 'out of round'. Where others are just poor quality control in the dowling process itself. Either way it exists and drives me nutz! You can see it with a good crester also like the arrow specialies. Something that can get slight bends out if there are any creating perfect pin strips...if the shafts out of round you'll notice it immediatly! Now I'm just ranting lol........