@scotchipman , that is correct, at least for me. Also correct, not a fair comparison. I have no experience with the ACME 3 blade designs. I do have a buddy who has the same boat as me with a ACME 4 blade, and to me there is NO difference between my 4 blade. (ACME did not have a 3 blade for the boat at the time).
Eric from OJ recommended the CNC 454 prop for me over the other props he has for that boat so that is what I got. He has found, with his current blade designs, that the 4 blades performed better over all on that gear reduction trans on that hull design. All I know is it delivered exactly what he promised.
They are two very different designs when you compare them, I'm sure that's the reason for the differences between 4 blade, to 3 blade between the two manufactures.
The main reason I chose OJ is because dealing with Eric was one of the best experiences from a personable and CS standpoint. To the point of carrying on personal convo's at times. Bill was nice on the phone, but in the end, I felt the CS and technical help was a bit better with OJ. Eric, not once, for me anyway, asked me to buy the prop no matter how many silly and redundant questions I asked with numerous phone calls.
One day I will like to try the new 3 blade ACME that Bill has for the 1.52 Powerslot boats, but for right now I am completely happy with my current prop. I am not saying that a 4 blade is better then a 3 blade and one company is better then the other, I am just sharing my experiences with a certain prop, from a certain company on my particular boat. That and I am very loyal to great CS. Eric has called me or texted me a few times to make sure I still like the prop and even seeing how I was doing when I was going through a pretty bad rough patch a few years ago. Just an all around great guy.
As far as product comparison, I feel its like Ford-Chevy, SN-MC. Both have ups and downs, take the best for what you personally want. I always tell people that I prefer OJ for the reasons listed, but I also want people to call ACME and OJ and speak with Bill and Eric and chose what fits you best.
P.S. Sorry for the long winded replay, I just hope it may help someone at sometime.