Poppy-cock, horse poop. I use Titegroup for 38 spl/357 mag, 9 mm, 40S&W, and 45 acp. Easy to meter and good consistent chrono results. As they say pay attention when you load and you have no issues with solid repeatable performance.
With .3gr difference between start and Do Not Exceed and filling less than half the case on on a very small case, I can see a potential for Very Bad Things to happen..... call it "spikey" or "hard to visually verify", "plenty of potential for pressure events", or whatever ..... I won't use it.