Have any of you 7 string players run into annoying intonation issues on your 7 ? A problem I've run into with more than one guitar is the low strings always sound out of tune/sharp even after an intonation and setup ( using a good tuner to intonate) ..My 6 strings havent had this problem, just my 7's and it drives me f*cking nuts!! I find that if a particular 7 string always sounds sharp that tuning the last 3 strings slightly flat makes a huge difference. Does anyone else do this? And is it possible that the string gauges I've used were too thick and had too much tension ? Lighter gauges may work better as long as I'm not down tuning too much ? Share some tips or your experiences please !