I used O'donnel fuels for a long time. I liked the performance in O.S engines. I always had one complaint. Same as Ron. Gums up everything, and it makes a mess out of your boat. Since I got the K90. I started having my fuel custom made. It works better than Odonnel when it is fresh, but it seems to have a shorter shelf life. It isn't so economical unless you make about 72liter batches. Most of the ingredients here in Japan are only available in 18 liter cans. I have convinced most of the guys who I boat with that it is good stuff, so we split the cost of having a big batch mixed up.
We have seen Red Baron here recently, but it hasn't caught on. Not many good comments about it. I haven't used it personally, so I can't give you my opinion. If you are just starting out, run what you have. I would only recommend that it is designed for boats, for airplane and car fuels don't contain enough oil.