While watching the football games today, I sanded down the domes on a couple of Singer Class 66 bobbins, measuered out 50 feet of cheap 20 lb. test line, and found that I could only get about 25 feet on a bobbin.<br><br>Is there an appreaciable difference in line diameter of the same test fishing line as the cost, and hopefully quality, go up? <br><br>Do I need to look for thinner line with the same test strength?<br><br>Thanks<br><br>Seth