You started out wrong you need to take atleast 181 weight. Then you put the first 15 points in speed so its 26,9, (save the 15SP) encahnce speed 1 star, train 3 times intense, enchance speed 2 stars, intense train to day 48... Put the 15 saved SP on speed and you will have speed at 47,9 then change 15 BT to 1 SP so that you get speed to 48,9 and then you can boost 3 times