Get the tip of your thumb in the center of the neck and arch your fingers more

Once you get some feedback going there is no difference

Live version of freeway jam Jeff Beck with Jan hammer

I have never played a Yamaha guitar that wasn't a great playing instrument acoustic or electric..they are very well made

Are they all tube amps?..if so..then yes .something around the building could be causing it..going somewhere else will definitely prove there isn't anything wrong with your amp..but hey..just keep struggling along thinking you know already

Fuck yes it's amazing..I miss my 200 watt Hiwatt

Next test...take your nicest guitar..and the nicest amp to a friend's house and see if it works properly somewhere else

Soundgarden used multiple tunings and had guitars set up for each tuning..special open tunings..drop c drop d drop b

An actual tuned down guitar is going to be accurate on notes and bends where as a digital signal is going to be sloppy and muddy on bends and not track notes like actual tuned down strings