Thanks guys!
I only play a 1.5G occasionally on a very, very low melody line. Usually, the 4G works just fine for lower trigger notes.
My go-to is the 4G, but I can see uses for the original Conn 3 that came with it. That mpc does very well when I really want to spank a high melody line with attitude.
I don't think there is a "wrong" mpc for that horn b/c it is so versatile. But outside the norm, there could be intonation and articulation concerns. Not that they couldn't be overcome, though.
The horn plays like a dream, so it's not merely a shelf queen. It's a fantastic-looking work-horse.