cloner uses reusable rubber pucks, its good for a few runs but then need replacing. They are usualy specilized ones for that cloner and u have to order new one. So when u get a chance order a couple sheets, (extra pucks) you can try the hydro store aswell or ask them to order them for u
Let them veg big time, long roots several inches long. Split the one inch rockwool down the middle so u have two parts. Use the two parts to cover the stem and some of the roots. Now take that and screaw in the one inch and the long ass roots into the 3inch, rotating works well when pliging the 1 inch to the 3 inch. Within a few u should see roots coming out of the 3 inch this is a perfect time to be plugged into the producer
They take a few days from transplant to root tho the 3inches. Plan accordingly so during these 3 days your harvesting/cleaning/preparing. This insures no down time.
When you plug in them into the pro make sure u put the water level high, 60-70liters so water is almost touching the net pots. This will keep roots moist and they will root into rez fast. Once roots hit the rez they explode.