I can tell you misunderstood some of what scallywag wrote. You have to learn to seperate opinion from fact. Where he talks about beam quality, you read it as beam pattern. That is 2 different things. By quality he is probably refering to the color quality, which is not too good, but okay for most. Pattern is the physical shape and angle the light comes out.
I’m not sure what he means by it being floody. By using a bigger die led and small reflector the hot spot gets bigger. Your spill light is brighter as it’s directly related to lumens.
Short run time should be expected for all small lights that put out high lumens. I have not done any research into the FW21 Pro, but looking at its size and if it really does 10,000 lumen you can tell it will got hot very fast. This is the law of thermodynamics. So consider Turbo to only be a burst mode. Not something that can run for long. For something that can light up a football field and be so small its impressive. Not practical, but impressive.
Like I said earlier, you need to choose the light that best fits your needs.
GT90 does not have active cooling.
The GT Mini with xpl-hi has a die size of 1.9mm x 1.9mm. So that die size matched to that reflector gives a pretty small hot spot size and the spill light is a bit weak at 1200 or so lumen.
Then the GT Mini Pro has the equivalent of a 4 to 4.5mm square die (the dome adds effective area which is hard to calculate). It’s a pretty big jump in surface area like about 4 times bigger. Using the same size reflector, this causes the hot spot size to get larger and now the spill light goes from 1200 lumen to 3500 lumen. Your spill is lighting up things much more than the Mini.
So there are always pros and cons. For example, between the Mini and Mini Pro, do prefer the smaller hot spot or larger hot spot? With both lights set to 1200 lumen, both will last a few minutes. The Mini gives you much longer distances compared to the Pro as well as appears brighter simply because the smaller hot spot concentrates it’s 1200 lumen into a smaller area. The Pro spreads it’s 1200 lumen over a larger area, so it will appear dimmer. A tighter focus looks brighter because it increases “intensity”.
The Emisar D4Sv2 is a TIR style light, no reflector. It creates a noticeably different beam pattern. The hot spot tends to be a bit bigger and the spill light is noticably less. Keep this in mind concerning your usage needs.
For instance, I personally use my lights for walking at night and I prefer reflector based lights as I can shine the main beam forward and the spill light illuminates the ground in front of me. With TIR lights I find the ground is not illuminated well so I have to wave the light back and forth from straight ahead to down back and forth. It’s a bit annoying.
There is no such thing as a good combination of throw and spill. It all depends on what you think is good.
It seems you have narrowed down your choices to a size and ramping UI. All 3 lights are similar in size that are easy to carry and pocketable. Tell us what your other needs are. Do you need a certain distance? Or a certain run time at a certain distance? What are you using it to do? Are you picky about color temperature? Do you prefer NarsilM, Anduril or RampingIOS?
Sometimes you just have to buy a light and see how it works for you. If it’s perfect, good. If it’s not perfect, you find a light that corrects one of its flaws and see how that one works. After a while you see that certain designs fit certain situations.
Anyway, I hope that helps.