d4,
Love your McGyverish contraption...I have tried many ways...The tube was a med tube with fish meds...Worked well...then on to the vermiculite, this worked quite well..but the last method of using the rapid rooters, was the best way so far..Mandala Seeds technique suggested by Image Reaper has turned out to be the way to go, and I have had the best poppage rate in doing so...:thumbsup:

But keep on trying and you will eventually settle on a method that suits you fine...

Peace,
Treetops