Just installed an Acme 1847 and took the boat out for a spin. I have to say it was amazing the difference between my stock prop and the Acme. Anyone running stock, do yourself a favor and put a new Acme prop on. You will not regret it. However, before any of you buy a prop, may I suggest you talk to JT at Nettles. I talked to him at length about which prop to put on my boat. He steered me to the 1847 and I couldn't be happier. He listened to everything I had to say, listened to what activities we do with the boat and then made a recommendation. I talked to other companies as well but felt they were reading a list of options out of a book. JT gave me a couple options, listened some more and pointed in the right direction. He even gave me his personal cell number and told me to call him after my first test run to make sure I was happy with the prop. Suffice it to say, I am a HUGE fan of JT and Nettles Props!!!!!!!!!