The Misti or other stamping platform has been invaluable with the distress inks because you can multi stamp it to get a full image. I think what paper you use will matter. Yes they stay wet longer than usual dye inks which makes them nice for heat embossing.
B/c they are water based, you can WC with them. I just stamp off to the side and dip in with a wet brush.
They were some of the first "super blendables" b/c they stay wet longer....although the distress oxides blend much smoother, they also (to me) are not as bright in color-feel a little chalky-and many feel the oxide's real super power is what happens if you wet them with water.
You may get a better blend with them with the brushes vs the older sponge on a handle tool. That tool takes some practice.
Just a few fast thoughts.