High Speed Toners are designed to be used with Pulp Riot 10 or 6 volume Developer and can be mixed in a 1:2, 1:3, or 1:4 ratio. Together the volume of developer used, and the mix ratio will determine processing speed and the level of deposit. For the densest, deepest toning use a 1:2 mix ratio with 6 volume Developer for the full processing time; for the sheerest, most pastel toning use a 1:4 mix ratio with 10 volume Developer with the shortest development time is recommended.