The Steel Guitar Forum

How high is up?

Just high enough so it doesn't over stress the axle.

So what?

I currently have the changers out of my 86 MCI welded frame PSG - and in bits on my bench -- after 30 years of constant playing this guitar exhibits almost no wear in either the changer fingers or the axle, just a little on the finger tops from string wear. The axle looks to be the same size as most other modern guitars and once I cleaned all the gunk off it and polished it up a little it look like new. (same with the fingers)
So I would be surprised if there was enough of an extreme load on the changer axle to cause any type of flex/or binding etc - unless it was made out of some inferior material.