Crosstalk is definitely a problem, e-drums and pads have it too. But are you sure the tradeoff is inescapable? Imagine the tines sit on separate pads, or on the same pad but far from each other. (Or close to each other, but with deep grooves between them, so that the distance through the connecting material is large.) This thought experiment shows that damping and crosstalk can be small at the same time. So maybe you can reduce damping but not increase crosstalk, by changing the instrument’s shape or materials.
I do think it’s possible to have low crosstalk with low damping. The problem is that my current design uses the same rubber (sorbothane) pad for both purposes. Possibly this could be two layers, first sorbothane (for isolation) and then something springing (for minimal damping). Or an actual spring?
Crosstalk is definitely a problem, e-drums and pads have it too. But are you sure the tradeoff is inescapable? Imagine the tines sit on separate pads, or on the same pad but far from each other. (Or close to each other, but with deep grooves between them, so that the distance through the connecting material is large.) This thought experiment shows that damping and crosstalk can be small at the same time. So maybe you can reduce damping but not increase crosstalk, by changing the instrument’s shape or materials.
I do think it’s possible to have low crosstalk with low damping. The problem is that my current design uses the same rubber (sorbothane) pad for both purposes. Possibly this could be two layers, first sorbothane (for isolation) and then something springing (for minimal damping). Or an actual spring?