Power Pistol is what I use. Im using a 150-155 GR bullet. It's decent. I use the starting loads because I was using some plated bullets. Some were FMJ but I was still just at the start.
Accuracy was decent but since I'm shooting them in a Glock Barrel, I tend to stay away from to high a charge. It is a good powder choice. I have no complaints about it.
I only say about the Power Pistol because it's the only one I have experience with at the moment.
As for the KaBoom thing, The reason they say that is because I was told they are pressure sensitive cartridges. Just follow the manuals information and you will be fine.
Also, Find a routine that works for you and stick with it. Try to stay away from double charges, Wrong powder ETC and you will be fine. One powder only on the bench, Call it out, Look at the book and call it out again. Check the charge call it out. Visually verify again. Its what I do when I load any of my calibers and Im happy to say I have not had a problem yet....