I’m not having it that it makes any difference whatsoever , in my 50years of existence and at least 45 of plugging I’ve not cared one jot and nothing bad has happened to plug or item plugged in .
However it might have something to do with the Uk using the best 3point plugs and the rest of the...
Works better with one as there’s no chance of the magnets going out of sync from installing etc . I rarely go over the standard limit but it’s there if needed.
Buy 2 planets you can choose to have the limit set at 24mph with 2x magnets or 48mph and no chance of a misalignment with 1 magnets ! I use 1 magnet and have had no issues 👍
Chin mount is way better imo , even if filmed with an inferior cam it will look smoother cos when riding your head is the most stable part of you plus who wants to see bendy arms blocking the view 🤙
You got the perfect angle with the bars and hands just in shot also if you use the chesty make...