i have a 100% record (so far) with just putting them straight into rockwell. Just remember to soak the rockwell in correct ph water a couple of days before u put the seeds in. Then stick them under some low wattage cfc's till they pop then add more light as u see fit! less handling the delicate little plants that way. i then put them in soil when the first roots r coming out of bottom of rockwell. only prob with rockwell is that it dries out quickly and u need to check it couple times a day or ur plants may get too dry.