Drip is one of, if the not the best way to go IMO, but I think the better results come from a twice a day 2 minute drip. Now companies are saying 10% run off is attaquit. It really depends on the grade coco you get if you want to recirculate IMO, you will find that many do run to waist, but more skilled growers just recirculate, but with most of them they do a run to waist for the first week in order to give the coco a nice flush. Right now I am using GH 3 part with CalMag and havn't had any defs.
IMO cloning and starting seedlings in coco can be a little tricky compared to soil. Many start clones in RW and then put the RW into the coco. If you do a drip set up they have coco bricks that have a pre cut insert for RW or rappid rooters. Coco can also be used for more than one grow, I usually find growers reusing it about 4 times.
I start my clones and seedlings in the little 4 pack tray and once a root ball has started I rince most of the soil/perlite off and put into my coco, but I use GH coco and it is mid grade and I think that it is why I have a harder time with clones/seeds.
People are even switching over from DWC to coco because many say that their yields are comprable but with out some of the DWC facters. I remember reading a guys thread who swiched over, he said that when he had a heat wave in his city he went over to his bros and his coco was thriving even under the hot temps wile he was battling heat problems with his DWC buckets.
I will dig up a few threads and post them here later.
Adieu