Nope Graham, cutting a new slot farther back in the biscuit, not only weakens the bridge but really cuts down on the volume of the guitar and changes the tone. Once again, if anyone can come up with a way of putting the intonation "in" I'll be amazed and thrilled.I played a hand made 'one-off' resonator guitar that was perfectly in tune a couple of years ago. I was so intrigued, I measured the scale. As I suspected the whole bridge/saddle apparatus (including the well) was placed a couple of milimeters farther back on the guitar. My one question that's never been answered (by the companies that make the guitars,) is "why was it never moved back so it would play in tune"?
Rick