I'd say 100% nut cut. Don't forget that most acoustics have similar headstocks to a 3+3 Gibson in terms of string angle and tuner positioning. Gibson have made some straight string-pull 3+3 headstocks in the past, but they rarely look right and so the guitars don't sell well.
Gibson are their own worst enemy here by not setting up their nuts well enough at the factory. Maybe they need to lower the cost price and make the dealers do a set-up to suit the owner. My 2019 Firebird had a really badly cut nut and I had to pull really hard on the B string to get the factory string out of it - and that was a set of 0.009"s! Several strings of a set of 0.010"s just sat on top of the nut and wouldn't fit in the slots. Luckily I expect to work on every new guitar I get, so I have a full set of nut files, but not everyone does. But with them, it only took a few minutes to set the guitar up as I wanted.
Hopefully things will improve at Gibson with the new management, but if the nut is cut properly, they do stay in tune wonderfully well.
Last edited by Simon Barden; 18-10-2019 at 05:03 PM.
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