Danny, I've got a pair of Acoustic Research AR M1s (the $300 speakers that Mark Levinson used to use to demonstrate his Cello electronics) that have a simple first-order (cap and resistor) crossover on the tweeter and nothing on the woofer. With your help, I've already upgraded the cap to a Sonicap, do you think there's any value in going further with these? I'm not averse to shipping them to you, and they were generally regarded as punching above their weight class, but I don't know how quickly you think we'd run into diminishing returns.