I thought that it was time to thank you, Wayne. After sitting on a pair of 2226H for a couple of years, I went ahead (with over the phone assistance from spkrman57) and completed my own "4 Pi" build.
I additionally used a pair of 18sound XT 1086 horns, B&C DE 25's and your crossover design with about 15dB of attenuation when it was all said and done. After horsing around with the HF circuit some, I settled on that and am very pleased with the results.
Just wanted you to know how much I appreciate your gracious sharing of your work and willingness to help others, including myself.