well im going to chime in here and i am no expert i have dip dyed with oil base feibings Black straight out of the bottle and never had any problems as of yet . well i just dip dyed a small holster in the Tandy e waterstain Bordeaux color diped one ende then the other end the 2 ends matched up ok but im not sure its going to dry ok after 20 mins it is still wet to the touch and it was only in the dye for may 3 seconds. more to follow as it drys
Wayne