Thought I would let you know what the New Mercury Bravo I LT did on my 2014 Z9, 10" Atlas, 250 Pro XS. Was running a 25 Tempest Plus before.... Full load, 2 guys, 1/2 tank gas, 4 batteries and live wells full would get 66 GPS no matter how high I ran the plate with 25 WP.
Ordered the New Mercury 26 Bravo I LT 4 blade and it's like a brand new boat. Ran the jack plate all the way up to 15, 25 WP and full load, 2 big guys, 3/4 tank, 4 batteries etc with live wells full hit 72 mph. The boat it like on air and runs now like a lot of my old 21 ft. Tritons with lots of lift and very responsive and fast. No question this is the right prop for a heavy Z9.. Came alive!!