@ Rat Man; Thanks. For a Appo sling braided from bark it was not all that bad

@Tomas. I usually leave 1-2" as tassel in my braided slings. It don`t seem to have any ill effects. But much of the tassel is usually worn away while the new sling is "worn in".
The idea behind a braided tail ofter the release knot was for me mostly a question of wear. In one particularely successful Apache sling first the tassel was worn away, into the end knot. Then I unbraided half the tail and made a new end knot. When all that was worn away again and the trigger kno began to unravel it was time to add new cordage and re
do the tip of the release cord. My son still use this sling some times.
For slings made from sinlgle para- or poly cord
I think the knot should be the end. Leave until 1"
if you has to, but in no way more than that.