I have used baitcasters for years and my last catfishing trip i had an unexpected problem that I have not expierienced before. I was casting as usual and had a backlash, not entirly uncommon it happens to all of us. Then as I was untangling it something caught my eye, a loose end of line within my spool. I pulled out the line and about 60-70 yards deep in my spool there was a clean break. A little background this paticular Rod I typically use in a small canal so there is rarely more then 20-30 yards of line out where the break was it look like a clean knife/sissor cut and the line had no signs of being frayed. I was using 15lb test stren mono.. ANy Ideas?