Whoops again - fixed sound on last video, plus Thumbnail strategy mystery (Patreon)

I've been doing this YouTubery since 2008, so you'd think I'd be getting the hang of it by now, but no. I'm using DaVinci Resolve now to edit, and it has a lot of annoying quirks. I keep having to watch tutorials on how to do the simplest things and thinking "How in the world anyone guess THAT?" Anyway, it doesn't tell you whether a clip is stereo or mono unless you ask, and the way it displays the sound VERY strongly suggests stereo, and the way to make the sound come out of both speakers involves a deep delve into arcane menus, equipped with pitons and a packed lunch. Twice now I have uploaded videos with some or all of the sound in one speaker only. Poo.Anyway, here is the fixed sound version of the Battle of Asculum (war waggons) video: https://youtu.be/Ru9JByZBeSgWhile I'm here: I've been trying out the new testing feature with three alternative title and thumbnail combinations. So far, the results have all been very similar: all three get roughly a third of the clicks, even when they are very different.

My first thought was to set the title and thumbnail combination (I wish they tested the two things separately, but they don't) to whichever got the highest number of clicks, but then it struck me that this might be very bad strategy.

There are some people who are going to click on one of my videos because it is one of mine. I don't have to worry about those. There are others who won't click no matter what, and there is no point in worrying about those. The only ones of interest are the floating voters, who might click but only if the title and thumbnail appealed to them. Having three thumbnails in use at once triples my chance of reeling any given one of these in (well, not exactly, because each might be shown only one of the three once, but I notice that I am shown the same thumbnails a few times before they disappear off the RADAR).

Perhaps, then, the best long-term policy is to keep all three types of bait in the water (unless perhaps there is a clear run-away winner, but in eight tests I've done so far, there never has been). It should also increase the number of new viewers, and perhaps they are the most important.What do people think?(No charge for this post, obviously)