I been turning for about a year and have constant problems with the out come of my segment rings/bowls. I have a segment jig that works just fine but during glue up I always end up with the smallest (1/32or so)of gaps, and rings not being totally flat. Typically i will try to flatten rings with a quick pass thru the thickness planer or by hand on a isolating belt sander. Neither seem to give me a perfectly flat ring when stacking multiple rings on top of each other. So once i get the bowls roughed out I have little gaps that show up as dark glue spots. does any have any tricks to keep gaps tight when doing segmented bowls? I get my saw and jigs set as close to perfect as i can but in 18 seg rings the smallest off set multiplies into a ugly problem.