Lion Brand pattern knotting

[crochet.sandie]

I am wondering if I'm misunderstanding something. One always here never to knot your ends and here, at the Lion Brand web site, on a charity pattern it says:

 

http://www.lionbrand.com/patterns/cvs-superPlushPetAfghan.html

 

NOTE: When joining a new color, cut old color leaving a tail, tie the new yarn very tightly to tail of old color, and sc over the yarn ends. The ends left out will shed all their plush fibers, ending up as threads. When they reach this state, clip them and the shedding will be over.

 

Now it says to sc over the yarn ends, but then it says "the ends left out". If you crochet over them, then what is left out?

 

If this is meant to be one of those reversible pieces with the little ends sticking out all over the place (which are cute), then why do you sc over them?

 

I'm confused and I know I must be missing something.

 

Thoughts?

[hudelei]

I think knotting is sometimes recommended for chenilles, velvet and velour-type yarns, etc., because of the shedding from the cut end. I think you could probably put a dot of Fray-Check on the end and keep it from shedding, though.