You can follow the video procedure using any solvent, including everclear, but some solvents work better than others.
The poisonous solvents might work a tiny bit better than 190 proof ethanol, but are very dangerous, and not worth the risk.
Either follow the video using everclear, or just make cannacaps or edibles.
Lower proof than 190 won't work as well.
RSO (nearly the same as FECO Full Extract Cannabis Oil) is very inconvenient, and most people dilute it at least slightly with a bit of warm oil.
Unless you need to take huge doses of thc daily, there are much easier, tastier methods.
Simplest of all is to decarb the herb (240 F for 40 min), grind to fine powder, blend/dissolve the herb powder along with some lecithin into the oil of any recipe, add that mixture to the recipe, bake, and use.
This is my favorite method.
There is almost zero herb taste when using at least 10 g edible with 1/4 gram herb, but whole herb does bother some peoples' stomachs.
The same thing can be done to make RSO, except that the herb is soaked, the mixture strained, and most/all of the alcohol evaporated/boiled off.
I have detailed written instructions for making FECO/RSO/Tincture or cannacaps if you have interest.
Yeah id like to see your instructions if thats ok.