I do not back fill my 1 and only spinning combo.
I use a blood knot.
if you don't back fill the spinning reel do you have holes in the spool to tie through? Just wondering if no holes to tie through the what keeps the line from spinning on the spool?
Those "holes" are not there to tie line to. They are there to lighten the spool. Haha.
Tie the line around the spool, even one with holes in it, with a simple overhand knot. On the tag end of the overhand knot, tie a small single knot. Pull the main line to cinch the overhand knot until the tag end knot slips down to the main overhand knot. It will be plenty tight enough NOT to slip if done correctly. Last step is to clip off the excess line tag from the back side of the knot and spool up the reel with line.