Octane booster is always an alternative. However, you must make sure that the octane booster you use actually raises octane. Some products such as 104+ used to contain MMT which was effective in raising octane. 104+ now contains NO MMT and therefore is not nearly as viable an octane booster. Make sure to use a product with known octane boosting properties. My personal opinion is that MMT is among the most effective octane boosters for 2 stroke engines. Toluene can also be used, however as some have mentioned previously, large amounts can tend to reduce throttle response.
I suspect that quality super unleaded may be enough for your needs. One quick, somewhat inaccurate and dirty way to get a handle on octane needs is to do a static compression test on an engine in good shape. If you are getting 200PSI cranking compression, it is a good bet you will need high octane. If your compression is 160PSI or less it is likely that super unleaded is sufficient. I believe that the in between is a grey area and subject to other operating factors.
Chris