I would think it would be down to each phenotype not each plant. I have no evidence just my thinking. Unless you mess the plant up, I would think all Ripleys OG that are dank as fuck and smell like hot sick like mine will make great rosin. This was twice as sticky as anything else I have grown. Here is some rosin from it at very low temp like 190 or so. It was like a paste or what I would think was similar to crumble. Never had it, but when made this I thought that may be why they call it that. Another temp gave me what looked like crack rocks. Very stable stuff.
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That stuff I want. The stuff I squished was from one of my first grows and its very sappy. The material was not high quality nug. That sappy stuff is hard to work with in forming something that you can drop in to the coils on a wax pen. Would be easier to drop a dab in to an oil rig for sure. Wax pens are tricky to load up. I ended up with a 1/3 gram that was all over my hands that I could not recover. Just had to wipe it off with ISO. And something like crumble or rocks would be easier. Looks like some trials are going to be needed and some stuff will be great rosin and some not so great.