Wanted to thank @donsachs and @jbhiller for the guidance and encouragement on the crossover upgrade. While not my first time soldering I would still consider myself a "beginner" with circuit board work. Honestly the project is not difficult and really only requires patience and methodical work. It took me about 4.5 hours to complete. I've been hesitant to do the upgrade but Don Sachs kept nudging me saying I haven't heard what the speaker is capable of. I'm glad he did and he gave me the confidence I would succeed. If you are planning on making the Cornwalls your long term reference, no need to be intimidated by the upgrade. If I can do it, so can you.