they don't handle power as well as the 5R
not as quick, obviously. I see you've got some pretty healthy mods. I will say that a manual is nice because you can put it exactly where you want it, but man, I'd sooner spend the time/money on having Matt live-tune the truck.
One thing that is critical to me with tunes on these trucks is to lock out OD in tow/haul mode. Ford gives you no way to manually select 4th gear. If you have him lock out OD in T/H, this allows you to touch a button and be one gear lower. Ford will let you manually select 1st, 2nd, and 3rd, but not 4th! Makes a HUGE difference to be able to select that gear and hold it.
Might be worth an email for a tune revision