Try staggering first. You're kind of stuck with slow tool change speeds with this kind of tool changer regardless. It's not an issue for my long cycle time molds so doesn't bother me. (Not much benefit saving 10 seconds on a 30 hour toolpath). I have used FADALS that are 30 years old and still kicking. I had problems with my platter when I needed a huge face mill so I had to put it on the opposite side of several smaller tools and got rid of my Z height misalignments. Keep us posted how it goes.