Hesston 565A Baler -Twine Feed

I'm finding the twine can get large loops in it during the wrap.   80% or so of the twine wrap is straight and tight but others have these loops.  Bales are even and OK in every other sense.  I've got new tension plates and leaf strings with good tension and the feed seems regular during bale forming. 

Is there some adjustment for getting rid of these?  I've concentrated only on the twine feed which seems OK.  Maybe a bale density increase?

Thanks

Hesston 565A Baler -Twine Feed