I've been fishing with baitcasters off and on for over 20 years, never any trouble, and now I'm having problems. I bought 2 used 201 curados,put fluro on one and went to the lake and had backlash problems. I thought since that was the first time I had used fluro, that was what was wrong. When I got home I tried mono on the other one same problem. I've adjusted the mechincal brake(little knob on the side where handle is?)and I've tried the brake deal on the other side(don't know for sure about it). Still not much better.What am I doing wrong?