Nice write up..... also just proves that everyone has different preferences....some want lots of airflow, and some don't....I know that @OF actually prefers the older style Solo's with more draw restriction.
As for "clean vapour path"....I don't think the Solo is any "cleaner" than the Mighty, regardless of CU. They are all good.
As for "clean vapour path"....I don't think the Solo is any "cleaner" than the Mighty, regardless of CU. They are all good.