PR, if these cartridges may be carried for Personal Defense, both powders are not good as they have extremely high (BD) or high (LS) muzzleflash. I've used Universal with XTP155s in .40s with great results, and it's a very low-flash powder.
An EDC S&W M&P 357SIG. Ten Glocks sold. NRA life member.
"If lethal force is warranted and appropriate under the circumstances, the" (defender) "must shoot until the threat ceases." Pinizzotto, Kern, and Davis, FBI Academy.