Just as long as with the rapidrooters you remember TWO VERY IMPORTANT things for success with them:
1.) Keep 1/8" to 1/4" of water at the bottom of the tray. Just plain ph water, maybe some humboldt roots in there if you really want to, but it wont matter.
2.) Mist the dome at least once a day, or as it becomes dry inside. (Same rule as for rockwool)
You should see roots from seeds within 2-3 days and roots from clones in 5-7 days.
By the way, the reason people say to trim half of the fan leaves from a clone is so they dont yellow or dont yellow quite as fast. I forgot to mention that. Trim about 2/3 or 1/2 of the fan leaves with regular scissors when you toss a new clone in. You can trim them now too, it wont hurt them at all. Just the lower big ones, leave all the nice green top growth.
Pictures below are from this morning, notice the roots. 5 days in RapidRooters, from seeds. If they were clones they would be a gigantic bush of roots because of many cuts on the stem, but from seed they only come out so much. Because of the gentle water at the base of the tray, the roots search it out and get super long. They pull out of the tray without any damage, the holes are plenty big enough.