Who's panicking?
And how would you know if mH does or doesn't add crystals if you've never run one yourself?
You are not doing a good job of making your presumptions believable.
You are just coming across as someone who wants to argue about something that you have no practical knowledge of, and making challenges who's results will have no bearing on the real world.
In one breath you say you don't have resources for an experiment, and yet that is what you propose and are eager to participate in it, even though it would be a total sham of an experiment.
No one's arguing, either.
So far we are all only discussing.
Having done a whole bunch of Extrema for over a year (I'm small-time as I need to keep within legal limits regarding number of flowering plants at one time, so I've only grown about 40+ Extrema plants: 30 from seed and 10+ from clones), but, so far, I am seeing more trichomes running this batch of Extrema only under a mH than I did running it only under an HPS.
But I am only a few weeks into flowering and have 4 to 5 weeks to go before harvest, so time will tell as to frostiness, aroma and potency.
edit:
And, this is my first grow where I went 12/12 from start to finish, which means there is no real way for me to accurately compare this grow under mH with past grows using mH for veg & hps for flowering, or just HPS from start to finish.
There is much more to having fun in life than competition, unless the competition is with one's own self.
I challenge YOU to go buy a mH bulb with an enhanced spectrum (like the Eye Hortilux is an enhanced spectrum HPS), and see for yourself.
Document it thoroughly in text, photos and video, and show us your results.
While you're at it, run some under LED, and some under CmH, and some outdoors under the sun.
Until you do, you're just basing your statements on hearsay from others and anecdotal evidence of buds you seen, bought & smoked from dispensaries/clubs.
And you'll get more cow vagina by sauntering rather than charging, regardless of age.