Many Long Arm pro's will leave all of the thread tales, as many quilters who "show" their quilts will want tails long enough to bury, using a needle and working the thread back though the batting and then clipping.
The answer to how to deal with these threads is if the long armer took enough "in place" stitches to secure the quilting threads. If they did , and it's not a show quilt or competition quilt , I just snip them off. If it is a show or competion quilt they should be worked back , buring the threads in to the batting so as to give no indication of starts and stops in the quilting.
If there are not sufficent in place stitches as to secure the quilting, then a square knot needs to be made with the two threads. And then you can snip or bury . I would not trust fray check to endure for the long use and repeated washings and heat from the dryer. Fray Check does dry a bit hard or stiff, and over years of use the fray check can crumble or break the bond.
Last edited by Lori S; 02-07-2012 at 06:11 PM.