Hello, Last year I had a Lakland Skyline 4402 defretted and ive had it strung initially with flats then moved onto GHS pressurewounds. I am planning on going back to flatwounds (Ernie Ball Cobalts) now the GHS pressurewounds are pretty much dead. Lately I've noticed some marking on the fretboard (rosewood) and I was wondering what the best coating for protection would be to put on my board? Ive been doing a fair bit of research on the subject and I'm pretty sure i don't want to go down the ultra-hard, super-shiny route such as epoxy or the like. Mainly, because I'm pretty happy with the tone i get already, the time consuming work i'd have to put into the project and because not a lot of finishes are available here in the UK (nor luthiers in my area who actually provide the services). I was wondering if Tung Oil or Tru Oil would be the better option for me?