Don't get me wrong, I like the sound of the salad bowl tweeters. I like the sound of the large round horns too, like the Oris and Avantgardes. But I like my seven π's a lot better. On axis, they're about the same at low levels. But turn the volume up, and my speakers stay clear where the others get conjested. Those round horns make too much unbalanced sound bouncing around the room. Speakers that make the sound uniform throughout the room as opposed to just straight ahead sound much better to me, especially when playing complex material.But you may just like your salad bowls better. That's cool. They are very nice, and they sound good too. You might like how they look, they may just "feel" better to you. Maybe your compression driver and crossover combinations work better for you with salad bowls. I don't know. But I know that if you want to hear what I'm talking about, you can't really just compare just the tweeter horns. You have to compare the whole system.
Come on down to the Great Plains Audiofest, and try to spend some time with the seven π's. Listen to Geddes speakers too, as he does the DI matching thing like four π's. That's cool too. Try to spend some time listening, maybe in the evening when there isn't so much activity and visiting with other people. Or maybe just build a pair for yourself, stick to the plans and see what you think. Live with them for a while. Listen to them in the "sweet spot." Listen to them in other areas of the room. Spend some time with them and you'll see what I mean.