I know others may tune with a more focused approach to this, Neil, but as long as I am happy with the power output overall and as long as the gun is...
I asked the very same thing years ago, Phil, and I'm sure this will be a regularly recurring subject amongst springer fans.
Can't remember the / any...
Not seen one for sale but if you are handy with tools they look relatively straight forward to have a bash at, might be worth a go if nothing else is...