hey Rusty thanks for your input. We are still relatively new and had some instructions regarding this however I think you are correct, the next batch im going to do is simply with oxyplus and budlink, thats all. As you say we will probably have the same success. Never too old to learn so any info, especially from the more experienced is well received.
My only point in this post was these plugs....wouldnt use rockwool unless stuck for supplies.