In professional baseball after the turn of the century, the spitball was a legal pitch and Ewing was known as having one of the best in the majors. By late 1904 Ewing became one of the National League's first notable exponents of the wet one. A newspaper writer of the era described him as also having "great speed and a puzzling drop curve." With that new weapon he enjoyed his best year in 1905, securing his 20th victory in the last game of the season. Long Bob won 20 games in 34 starts with only 11 losses during the 1905 season. He still batted over .250.