Thank you for the reply

I'm definitely leaning more towards Rapid Rooter, even if it's more expensive than rockwool.... and my experience with Clonex has been very successful, moreso than Juicy Roots. The difference between the two is huge, I cut a tray that had half Clonex and half Juicy Roots, and another tray at the same time using no rooting gels. The Clonex ones had a BUSH of roots protruding in the bottom, while Juicy Roots had a few poking out, and the ones without gel took another few days to root.

I'll give heat mats a try. I haven't used it but from doing further research I think it'll improve my survival rate to 90%.