I am getting ready to buy some Speer Gold Dots for my Shield 9mm. I have a choice between a box of 50 of the 124gr or 124gr+p (could probably get the 147gr too box of 50) or a box of 20 124gr+p short barrel for a matter of a few dollars difference.

From reading this post, it seems like there is only a slight difference in the standard versus short barrel ammo. If you had a choice, would you buy a box of 50 rounds of the stand pressure gold dots (124gr or 124+p or even 147gr) or a box of 20 124+p short barrel gold dots if the box of 50 were about $7-$8 more than the box of 20?