After an incredible start to the 2004 season, and his Yamaha career, Valentino Rossi has nominated his debut M1 win as the most satisfying of his four victories so far.

"All the wins are hard but the first one in South Africa was the most beautiful one, as I was on the limit all the way through," said Vale, who was pushed right to the chequered flag by Camel Honda's Max Biaggi.

"As the bike gets more familiar, it also gets a little easier to race for the win," he warned.

Rossi will be chasing his fifth Yamaha victory in round seven of the 2004 championship, at Rio, this Sunday.