Help! Sterling by musicman JP100 tuning stability problem bar

[anianga]

hello all, i am from uruguay and my english is very bad

i buyed a sterling jp100d a year ago, since the purchase, I have stability problems when using the vibrato bar, my trusted technician not have idea why is the problem, the guitar is perfectly calibrated, my problem is based when pull-up the bar (up tuning) the standard tuning not return to standard, return 15 or 20 cents up-more, the bridge points are lubricated, the nut have nut sauce big bends, i am try with tremsetter and esp arming adjuster, but the last the tuning return imcompletly (the 6th string return more low and similar issues with the other strings) i am switch the bridge for a fishman powerbridge with piezo, and the problem continue, the tuners are the original, I thought change, but I think if it's that the problem

if need photos of the guitar pls tell me

thanks!

EDIT:

guitar sterling jp100d
strings 10-46 ernie ball rps

i have a sterling jp70 with same problem

 

[BrickGlass]

You are taking the right steps in using nut sauce. Have you considered that there may be a burr in the nut or where the strings pass through the bridge block?

 

[anianga]

thanks for the reply

i am test with the stock bridge and the fishman tsv, the two brigdes looks good and the strings have a correct for the strings space in the nut, i am taking photos when return from my work

EDIT:

imgur gallery

http://imgur.com/a/M0h53

 

[anianga]