Rapid Rooter to Final Pot - Autos

I made the mistake of planting my autos straight to 3 gal roots organic. Only 5 of 7 germinated.

I was wondering, for my 2nd grow, would it be better to germinate and plant in rapid rooter then once the roots poke, plant to the final pot?

Is this considered transplanting? and therefore stunting the auto?

Does anyone use rapid rooters to final pot with autos and have good yield?

I always germinate them ( Paper towel method ) then put them directly into roots organic 707 soil, half gallon containers and never had a problem or ever used rapid rooters..

i just plant them 1/2 inch deep and lightly water this method works so good that even nature adopted it if they dont pop up you can lightly dig the soil away and let some pressure off of it and it will finish popping

to answer the rapid rooter question aslong as you dont prolong the stay in the rooter pellet then it shouldnt hurt the plant once it pops plant it they have strange tap roots and large side roots they like to reach out unrestricted

Thanks guys