Dear Friend, Mr.lastcoyote
I use LED Ring Light for my dear MP-E 65 mm., Since 4-5 years, and still love this LED Ring light, which can turn on Both Left side and Right side---Or just one side of the LED. Ring light , for the Shade and shadow to make the subject 3D. look. Yes, Super Cheap TOO = jUST $ 36 us dOLLARS---If you do not like , Just throw them away.
Thanks for reply Surapon.
Yes it seems to me most people use a continuous ring light for macro video, similar to the one you linked to.
I guess I need to literally try out the options to see what works best.