I'd like to know more about the Muyshondt!
It's a great looking light, if I recall they were CR2 powered. Do you know which LED was used? What were the output levels? The circuit is probably very efficient, and the light is worthy of an upgrade of the LED if you want to improve/change the tint. You could probably even get someone like Vinh
to change the driver if you want to go with a rechargeable LiIon and a programable interface. The 15270 size is rare in LiIon, but they do exist.
There is a lot of hype in the current market. Nobody seems to care about flat regulation anymore and a lot of the lights now only do the mega lumens for a few seconds before dropping down to possibly less than your Muyshondt on high in a few minutes.
Titanium is readily available on popular Chinese lights now, but I sort of consider the Chinese Tec disposable these days, so I prefer aluminum, because at about the time the aluminum starts showing wear, it's time to upgrade the whole light anyway. Aluminum is lighter and has better heat dissipation anyway. I really don't get the point of a titanium Convoy, although they are easy to mod.
A good place to get familiar with current tec is the review sites that still do runtime graphs. They are mostly doing imported lights though. Here are sites I visit.
Flashlight reviews, best-buy guides, hints and tips: 1lumen.com ( One Lumen ) 500+ flashlight reviews!
A site for things that interest a flashlight fan!
Everyday Commentary doesn't do runtime graphs, but does review some high-end customs, like this one from CWF:
I am not familiar with what the youtubers, Reddit and other sites are doing.