I ocean forest with plenty of extra perlite is always my soil of choice! Never had a problem with it being too hot personally. I love using it though because it gets rid of the need for veg nutes.
Well I wouldnt imagine a difference essentially both are same with dif nutes after nutes ate depleted in a month or less you move to feeding nutes so both are getting the same after the first month....seedling may grow fater at first in hf since less nutes being easier on seed but slower when first stages of growth because less nutes but in ffof slower at first cuz hot nutes on seedling but faster in later growth from more nutes...just my thoughtI did a side by side grow test of the two soils there was no difference in plant growth between the two.
Should I use the soil swear-word? I've got two plants in Miracle Grow and they're flourishing with zero added nutes.
As I said before, both Happy Frog and Ocean Forest are good choices.
A buddy of mine grows in MG. No perlite either. His pots are like buckets of mud. I think the last plant he harvested gave a dry weight yield of one quarter oz.
And it's your contention that it was the Miracle Grow that was his problem?