Hi, I'm Jonathan Kemp, acoustics researcher and developer of Kemp Strings (including lumped bass strings). Thanks for accurately describing the situation @ixlramp. I had never seen the Ray Ross bridge until now and I like the idea. The raised mass due to the knot at the bridge can be expected to lower inharmonicity somewhat which is a good thing. Intonation won't be adversely effected because the knot is a small fraction of the string length and the Ray Ross saddles are adjustable in postion to set the intonation. I agree that normal taper wound strings would be a bad idea on the Ray Ross bridge as tapered strings are built assuming there is string length behind the saddle. String tapers are only really useful to make the strings fit through narrow hardware or to form the permanent bend over the saddle more neatly and here the bend is absent. I've not seen the bridge in person but would love to try one out to do measurements.I see in your photo that you are using a taperwound B string. Due to the bridge design there is now far more tapered section in the vibrating length, which will increase inharmonicity. Maybe try a non-taperwound?
This is one unfortunate result of the design, but perhaps the increased freedom of pivoting movement at the ferrule has a similar effect and will increase the flexibility of non-taperwound strings?
Anyway, reason i came here is because Kemp Strings are now selling bass strings with a short section of increased gauge near the saddle. Designed using scientific theory and confirmed by scientific experiment to reduce inharmonicity when playing on the higher frets. This suggests that the effect of the lock-windings being in the vibrating length with the Ray Ross bridge may even have a slight advantage, or at least not be as harmful as some may think.
See the second video here Lumped bass guitar strings from Kemp Strings!
@GentProvocateur Typical low Bs from other manufacturers are 0.130 or so (and feel floppy) but my current production low B is 0.146 inch (for equal tension) on the main sounding length and tapered and lumped near the ball end. If my strings were to be used with a Ray Ross bridge I would custom design some specially with a much shorter taper to make the ultimate set that would fit the instrument.
