For a sanctioning body then new to BMX, it was pretty efficient in terms of running an event (taking into consideration the multiple qualifying runs). However, because of its inexperience it was plagued with tracks of inferior quality, both in terms of difficulty, they were deemed far too easy for venues of an international event; and the building materials used, for example during the 1988 Championships in Mol, Belgium the track was built out of white sand, which became particularly boggy in the turns. "It feels like riding on the beach" was a refrain from many American racers. This inexperience of track construction was rectified by 1991 when the FIAC and the IBMXF started holding combined World Championship series in 1991 after four years of holding separate championship events. The two bodies formally unified in 1993 (FICP was disbanded along with the FIAC by the UCI). After a three-year transition period, The UCI held its first World Championship in 1996 after absorbing the IBMXF and abolishing FIAC. With the increasing relaxation of the rules of Professionalism in the IOC, the merged governing body, run directly by the UCI, retained the professional division.