I have a SN2001 and will soon be buying a new prop. I have heard rave reviews on the 542 but limited info on the OJ. Any other info on the pros and cons of both would be a help. Price is no different so it comes down to really making a choice based on performance.
I sell both OJ and Acme. The OJ is a thicker blade than the Acme. From a repair perspective, the OJ is more durable for repairs. The Acme has a thinner blade and is slightly more efficient. It can take less damage than the OJ.
There is no "perfect" prop. Each one is a combination of many judgements by the designer and mfgr that results in a compromise between many factors.
Thanks for the info, I know just about everything on the 542 besides the fact that it is thinner. That doesn't bother me because I run in a deep lake that has very few spots where I would hit something while riding or hanging out.