Well, I have ran byrons in the past and also some of the other BETTER race fuels on the market.And if this Thread is about run times I have never seen a fuel get better fuel mileage than my sponsors S&W Trophy blend, period. The funny thing is a couple of the other posters in this forum talking about great run times,easy to tune,and good protection are also running oil packages coming from the S&W shop.As far as technical data i can't provide you with much but what i can tell you as fact is There is a major nascar team,NHRA top fuel team,and the biggest offshore racing team in the world is running an oil packing coming out of the S&W/SPL LUBE shop.And these are the same products in Trophy blend. Just because a particular company has the biggest name or biggest piece of the market does not mean they provide the best product. Why would a company spend 7-9k a drum for a barrel of PREMIUM oil when they can make mass market nitro fuel with oil that's 4 or $500 a barrel instead.If you think the big market fuel companies are doing whats best for you and your motor your wrong its about them and there profit margins! Theres a lot of "small" fuel manufacturers out there making good products.