I just did an extensive accuracy test, and 147 HST in my shield edged out the other stuff I tested, but not by a lot. Still looking for that "golden" round, but for now I've stocked up on the 147 HST.

My 1911 in 9mm (my other carry gun) REALLY likes the 147 HST +P. I got 3" group at 12 yd in rapid fire. Compared to 6"+ for everything else.

My shield did like my 124gr montana gold JHP reloads, and shot a 3" group at that distance, albeit 6" low left. But that's not anything you could consider for carry ammo. So I know the gun has the potential, but I haven't found what it likes yet.

I still need to try the regular 124 HST, and the 150 HST micro ($ka-ching$).