Yea, I can partly agree on that.. I have only ever run O.S V-Spec and Speed's and after needing a cheaper engine to keep me going for a month. I grabed a hardly used speed... and I knew top end wasnt fantastic, but Its not got alor of top end in m view coming from the speed.. it feels like its a 60% throttle.. to be fair I knew it didnt have the top speed on the speeds, plus 4's ect.. but I was very surprised at alot less it had.. but to me it should be fine. As Im not yet a very big travel racer so its fine for my local track.. but I dont think I will be getting one again.. tbh.. Prefer to get a V-Spec.. which is cheaper.. and probally faster lol-Not sure on that.. but probally close tbh.. and it didnt seem to me to be very linear.. aswell.. very punchy.. but it will suits some people's needs tbh.. -I have heard on the grape vine-SOME of the top drivers running Reedy Actually stick in Speed internals and use reedy case and head.. not sure how true or not this is.. So it gets branded as a Reedy.. but is techniqually a O.S..... My view