I finally have come face-to-face with what has been written about for years..
An "icky" Yamaha GH1, with the untunable group of plain wire notes in the lower tenor section. I know I've tuned a couple of GH1's in the past, but none were this terrible at the break. B is the lowest plain wire, and from there up to about Eb, they couldn't ever sound decent with the octave above.
I realize that there are better, more permanent, costly options, but I wanted to give this a try for a church where I rehearse with a men's chorus...
I pulled out my little canister of pitch lock clips and went to work on the bridge side of the strings - closer to the bridge has a minimal effect, while further into the speaking length has a more dramatic effect. The unison can be "tuned" by moving the clips - the further from the bridge, the flatter the
pitch.
It is really, "less bad" than before. The downside is that the only way to tune those strings now is with all three sounding - a nightmare! That, or maybe sliding the pitch locks up and down. I'll be experimenting as the weather changes...
Ron Koval