That might be same Issue I uploaded in THIS VIDEO
it's not SV103, but td-z 105h spool which seem tight with no side to side movement when I put in T3 reel. If that's same issue, all you need to do is replace 5x11x4 spool bearing to 5x11x3 (or 3.5) bearing size
bearing stopper on my td-z 105h are way too tall and only giving little space between bearing and end of shaft (marked with A in my sketch below-right)