just to clarify, when you are splitting the G on a pint of Guinness you are not splitting the harp. it‘s called splitting the G, the G of the Guinness needs to be split.
go to the bar, get a draft guinness in a branded pint glass and drink to the middle line of the “G” in 3 sips. if you miss the line, you can get another one and try again. If you get it dead on you can celebrate by getting another one. -Corey