Well I bit the bullet ,may have found part of the problem ,The rotary tip on the clamps screw came out of the clamp screw and I have been unable to get it out of the clamp ,evadently ,it is woperjawed some way ,even tried to press out with opposite set screw to no avail ,got it realigned I can at least use it till parts get here ,so I ordered a new upper clamp assembly two new set screws and two new clamp screws ,Lord knows it's earned It's keep the number of times used in the years I have had the saw ,this is the first issue I have had with it ,so after they get here I will replace them all and keep the lower clamp screw for a spare ,the issue will be resolved ,the clipping does really help especially in the center of a large fret pattern .Thanks for all the input and advice !