I need help. My guitar has the buzz feiten system. . I dont think i am liking the elixirs on my guitar. It was setup with elixirs. If i switch the elixer nanowebs 10 gauge strings to Daddario balanced tension 10 gauge strings. Check the website for the individual string info..they are similar but not exact. i was recording last night with the new strings and i noticed that in the higher strings the notes are off..especially with the low a and low e strings. All strings below 12th fret are ok but they get drastically sharp from 15fret up. I didnt notice this with the elixirs. What should i do?