I am no longer in the market for a trigger upgrade.
Took my Tavor out for "lunch", twice. Served was Prvi Partisan 77 gr FMJ match ammo and American Eagle FMJ 55 gr. The stock trigger feels much better (polished itself, or I got used to it, or probably both). A (possibly) quicker reset does not seem worth $350. No demo this time, but next time we'll do.
The 77 gr imported ammo felt ideal for this rifle. It shoots marginally softer than the standard 55 gr 223. Also the American Eagle ammo was a lot smokier out of the ejection port, which is to say right in my face.